991

This number is a prime.

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The smallest emirp that is the sum of reversals of first 31 (also an emirp) numbers, i.e., 1+2+3+...+92+03+13 = 991. [Sariyar]

Submitted: 2020-03-30 15:44:25;   Last Modified: 2020-03-30 20:35:42.
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