This number is a prime.
The smallest prime number that is a sum of primes beginning
and ending with the digit seven (811 = 7 + 7 + 797). [Capelle]
The largest minimal prime in base nine. [Rupinski]
The smallest prime concatenated in order from two successive strobogrammatic numbers. [Loungrides]
(There are 6 curios for this number that have not yet been approved by an editor.)
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