10861196119801

This number is a prime.

                                                             1086 1196119801

+ The smallest strobogrammatic prime p containing all the invertible digits formed by concatenating an invertible prime q (1086119) and the inverted q (6119801). Curiously, p is also expressible as the sum of two squares, i.e., (2591851^2 + 2035560^2). [Bajpai]

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