109661199601

This number is a prime.

                                                               10 9661199601

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The only strobogrammatic prime composed of all three-digit invertible primes (109, 199, 601 and 661). Note that 109661 and 199601 are invertible primes too. [Petrov]

Submitted: 2020-01-15 01:41:35;   Last Modified: 2020-01-15 06:35:04.
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