Q: What is the negative version of the number 813,521,123?
A: -813,521,123
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:
| 813,521,121 | 813,521,122 | 813,521,124 | 813,521,125 |
| -813,521,121 | -813,521,122 | -813,521,124 | -813,521,125 |