12312...97531 (131-digits)

This number is a prime.

         1 2312111911 7115113111 1091071051 0310199979 5939189878 5838179777
5737169676 5636159575 5535149474 5434139373 5333129272 5232119171 5131197531

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The smallest prime, greater than a googol, formed by concatenating the first 62 odd numbers in reverse order. [Loungrides]