You are 123 years old if you were born on July 31, 1900.
You are 123 years 7 months, and 4 weeks old or 1484 months old or 6,452 weeks old or 45,166 days old or 1,083,984 hours old or 65,039,040 minutes old or 3,902,342,400 seconds old You were born on a Tuesday.