121,401 in words
121,401
one hundred twenty-one thousand four hundred one
121,401 is written one hundred twenty-one thousand four hundred one.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand four hundred first
- Expanded form
- 100,000 + 20,000 + 1,000 + 400 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 0 | 0 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 7, 9, 21, 41, 47, 63, 123, 141, 287, 329, 369, 423, 861, 987, 1,927, 2,583, 2,961, 5,781, 13,489, 17,343, 40,467 and 121,401 (24 factors)
- First 10 multiples
- 121,401, 242,802, 364,203, 485,604, 607,005, 728,406, 849,807, 971,208, 1,092,609, 1,214,010
- Square
- 121,401 × 121,401 = 14,738,202,801
- Square root
- ≈ 348.43
- Sum of the digits
- 1 + 2 + 1 + 4 + 0 + 1 = 9
- Rounded to the nearest 10
- 121,400
- Rounded to the nearest 100
- 121,400
- Rounded to the nearest 1000
- 121,000
- Number before
- 121,400
- Number after
- 121,402
- In binary
11101101000111001
Quick check
What number comes just after 121,401?
Show the answer
121,402
Is 121,401 even or odd?
Show the answer
Odd
What is 121,401 + 10?
Show the answer
121,411
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 121,401 in words?
121,401 is written "one hundred twenty-one thousand four hundred one".
Is 121,401 a prime number?
No. 121,401 is a composite number, because it has more than two factors.
What are the factors of 121,401?
The factors of 121,401 are 1, 3, 7, 9, 21, 41, 47, 63, 123, 141, 287, 329, 369, 423, 861, 987, 1,927, 2,583, 2,961, 5,781, 13,489, 17,343, 40,467 and 121,401.