12345...54321 (27-digits)

This number is a prime.

1234567 8910000000 1987654321

Single Curio View: (Seek other curios for this number)

The smallest palindromic prime of the form 12345678910...0...01987654321 (in this case, 7 zeroes). [Marcel]

Submitted: 2026-01-05 16:43:09; Last Modified: 2026-01-05 16:54:12.