102688512907 has 2 divisors, whose sum is σ = 102688512908. Its totient is φ = 102688512906.

The previous prime is 102688512853. The next prime is 102688512923. The reversal of 102688512907 is 709215886201.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (709215886201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102688512907 is a prime.

It is a super-2 number, since 2×102688512907² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102688512007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51344256453 + 51344256454.

It is an arithmetic number, because the mean of its divisors is an integer number (51344256454).

Almost surely, 2^102688512907 is an apocalyptic number.

102688512907 is a deficient number, since it is larger than the sum of its proper divisors (1).

102688512907 is an equidigital number, since it uses as much as digits as its factorization.

102688512907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 102688512907 in words is "one hundred two billion, six hundred eighty-eight million, five hundred twelve thousand, nine hundred seven".