698908090691

This number is a prime.

69 8908090691

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The smallest invertible prime containing all of the invertible digits that is the sum of six consecutive triangular numbers, i.e., (116483475111 + 116483957778 + 116484440446 + 116484923115 + 116485405785 + 116485888456). [Bajpai]

Submitted: 2018-12-05 20:16:12; Last Modified: 2018-12-05 22:07:23.