11,121 in words
11,121
eleven thousand one hundred twenty-one
11,121 is written eleven thousand one hundred twenty-one.
Ways to write it
- As an ordinal
- eleven thousand one hundred twenty-first
- Expanded form
- 10,000 + 1,000 + 100 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 1 | 1,000 |
| hundreds | 1 | 100 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 11, 33, 337, 1,011, 3,707 and 11,121 (8 factors)
- First 10 multiples
- 11,121, 22,242, 33,363, 44,484, 55,605, 66,726, 77,847, 88,968, 100,089, 111,210
- Square
- 11,121 × 11,121 = 123,676,641
- Square root
- ≈ 105.46
- Sum of the digits
- 1 + 1 + 1 + 2 + 1 = 6
- Rounded to the nearest 10
- 11,120
- Rounded to the nearest 100
- 11,100
- Rounded to the nearest 1000
- 11,000
- Number before
- 11,120
- Number after
- 11,122
- In binary
10101101110001
Quick check
What number comes just after 11,121?
Show the answer
11,122
Is 11,121 even or odd?
Show the answer
Odd
What is 11,121 + 10?
Show the answer
11,131
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 11,121 in words?
11,121 is written "eleven thousand one hundred twenty-one".
Is 11,121 a prime number?
No. 11,121 is a composite number, because it has more than two factors.
What are the factors of 11,121?
The factors of 11,121 are 1, 3, 11, 33, 337, 1,011, 3,707 and 11,121.