102931085407 has 2 divisors, whose sum is σ = 102931085408. Its totient is φ = 102931085406.

The previous prime is 102931085351. The next prime is 102931085479. The reversal of 102931085407 is 704580139201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102931085407 - 2³¹ = 100783601759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102931085407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102931085497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51465542703 + 51465542704.

It is an arithmetic number, because the mean of its divisors is an integer number (51465542704).

Almost surely, 2^102931085407 is an apocalyptic number.

102931085407 is a deficient number, since it is larger than the sum of its proper divisors (1).

102931085407 is an equidigital number, since it uses as much as digits as its factorization.

102931085407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 102931085407 in words is "one hundred two billion, nine hundred thirty-one million, eighty-five thousand, four hundred seven".