4615392897979

This number is a prime.

                                                              461 5392897979

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The smallest zeroless pandigital prime that is the sum of the squares of first n strobogrammatic primes, i.e., (11^2+101^2+181^2+619^2+....+1008001^2+1068901^2+1160911^2 = 4615392897979). [Bajpai]