10007...75799 (81-digits)

This number is a prime.

                                                                1 0007882910
0078487100 0784571000 7839910007 8379100077 5691000767 2910007665 9100075799

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The smallest prime (emirp also) formed from the reverse concatenation of n consecutive n-digit Honaker primes, i.e., {100078829, 100078487, 100078457, 100078399, 100078379, 100077569, 100076729, 100076659, 100075799}, (case n=9). [Bajpai]