18986...91611 (42-digits)

This number is a prime.

18 9868118818 8118808811 6906911681 8911191611

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The smallest invertible prime that is the reverse concatenation of six consecutive strobogrammatic primes: (1898681, 1881881, 1880881, 1690691, 1681891, 1191611). [Bajpai]

Submitted: 2018-03-10 00:50:41; Last Modified: 2018-03-10 01:34:57.