I am drawing ssdi for about 10 yrs I am 57 my ex spouse of 23 years turned 62 this year can I start receiving his ss benefit ?

Hi. No. The earliest that you could potentially qualify for divorced spousal benefits on the account of a living ex-spouse is age 62. And, even then, you could only qualify for divorced spousal benefits if 50% of your ex's primary insurance amount (PIA) is more than twice as much as your own PIA. A person's PIA is equal to their Social Security retirement benefit rate if they start drawing their benefits at full retirement age (FRA), or their full Social Security disability (SSDI) benefit rate.

Furthermore, if you do qualify for divorced spousal benefits and if you claim those benefits prior to your FRA, your divorced spousal rate would be reduced for age.

Best, Jerry