231 in Words
How do you write 231 in words?
The number 231 is written two hundred thirty-one in words. As an ordinal it is two hundred thirty-first, and on a check you would write Two hundred thirty-one and 00/100.
Last updated 24 August 2026
Other ways to write it
| Cardinal | two hundred thirty-one |
|---|---|
| Ordinal | two hundred thirty-first |
| Currency | two hundred thirty-one dollars |
| Check format | Two hundred thirty-one and 00/100 |
How 231 is written
231 is the sum of its place values, 200 + 30 + 1, and is written two hundred thirty-one.
Its ordinal form is two hundred thirty-first — only the final element takes the ordinal ending — and on a check the amount line reads "Two hundred thirty-one and 00/100", where 00/100 stands for zero cents.
British English inserts "and" before the last part, giving two hundred and thirty-one, where American English writes two hundred thirty-one without it.
For house-style rules on spelling out numbers, see the Chicago Manual of Style.
Facts about 231
- 231 is an odd number.
- It is not a prime number.
- Digit sum: 6.
- Roman numerals: CCXXXI.
- Binary: 11100111.
- Hexadecimal: E7.
| Digit | Place |
|---|---|
| 2 | hundreds |
| 3 | tens |
| 1 | ones |
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Frequently asked questions
How do you write 231 in words?
231 in words is "two hundred thirty-one".
How do you spell 231?
231 is spelled "two hundred thirty-one".
How do you write 231 on a check?
On a check, write "Two hundred thirty-one and 00/100".