You are 123 years old if you were born on October 20, 1900.
You are 123 years 5 months, 4 weeks, and 1 day old or 1482 months old or 6,443 weeks old or 45,106 days old or 1,082,544 hours old or 64,952,640 minutes old or 3,897,158,400 seconds old You were born on a Saturday.