99999...01689 (100-digits)

This number is a prime.

                                            9999999999 9999999999 9999999999
9999999999 9999999999 9999999999 9999999999 9999999999 9999999999 9999801689

+ The largest invertible-digit emirp less than a googol containing all of the invertible digits. [Bajpai]

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