121,009 in words
121,009
one hundred twenty-one thousand nine
121,009 is written one hundred twenty-one thousand nine.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand ninth
- Expanded form
- 100,000 + 20,000 + 1,000 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 0 | 0 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 7, 59, 293, 413, 2,051, 17,287 and 121,009 (8 factors)
- First 10 multiples
- 121,009, 242,018, 363,027, 484,036, 605,045, 726,054, 847,063, 968,072, 1,089,081, 1,210,090
- Square
- 121,009 × 121,009 = 14,643,178,081
- Square root
- ≈ 347.86
- Sum of the digits
- 1 + 2 + 1 + 0 + 0 + 9 = 13
- Rounded to the nearest 10
- 121,010
- Rounded to the nearest 100
- 121,000
- Rounded to the nearest 1000
- 121,000
- Number before
- 121,008
- Number after
- 121,010
- In binary
11101100010110001
Quick check
What number comes just after 121,009?
Show the answer
121,010
Is 121,009 even or odd?
Show the answer
Odd
What is 121,009 + 10?
Show the answer
121,019
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 121,009 in words?
121,009 is written "one hundred twenty-one thousand nine".
Is 121,009 a prime number?
No. 121,009 is a composite number, because it has more than two factors.
What are the factors of 121,009?
The factors of 121,009 are 1, 7, 59, 293, 413, 2,051, 17,287 and 121,009.