Prime Curios!: 102

102
(another Prime Pages' Curiosity)

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102 = 2 * 3 * 17. The number and sum of its digits is equal to the number of its different prime factors. It is the smallest 3-almost prime with this property. [Capelle]

102+prime(102) and 102*prime(102)-1 are primes with prime lengths. [Firoozbakht]

102 is the smallest number m such that m times m ones minus one is prime, i.e., 102*111...1(102 ones) - 1 is prime. [Firoozbakht]

Two numbers 102!/2-(102+1) and 102!/2+(102+1) are consecutive primes. 102 is the only known number with this property. [Firoozbakht]