10000...00001 (4585-digits)

This number is a prime.

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A palindromic prime with a semiprime palindrome in the center (22446864422 = 2 * 11223432211) that consists of even digits only. [Earls]

Submitted: 2004-10-24 10:03:40; Last Modified: 2008-01-30 17:28:00.