12345...54321 (57-digits)

This number is a prime.

              1234567 8912345678 9123456789 1019876543 2198765432 1987654321

A pandigital palindromic prime with three sets of 9 increasing digits, prime 101 in the middle, and three sets of 9 decreasing digits. It is also the smaller twin of another pandigital prime. [Green]