102131313139 has 2 divisors, whose sum is σ = 102131313140. Its totient is φ = 102131313138.

The previous prime is 102131313091. The next prime is 102131313169. The reversal of 102131313139 is 931313131201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102131313139 is a prime.

It is not a weakly prime, because it can be changed into another prime (102131313169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065656569 + 51065656570.

It is an arithmetic number, because the mean of its divisors is an integer number (51065656570).

Almost surely, 2^102131313139 is an apocalyptic number.

102131313139 is a deficient number, since it is larger than the sum of its proper divisors (1).

102131313139 is an equidigital number, since it uses as much as digits as its factorization.

102131313139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The spelling of 102131313139 in words is "one hundred two billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred thirty-nine".