Q: What is the negative version of the number 21,311,511?
A: -21,311,511
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 21,311,509 | 21,311,510 | 21,311,512 | 21,311,513 |
| -21,311,509 | -21,311,510 | -21,311,512 | -21,311,513 |