31192102639 has 6 divisors (see below), whose sum is σ = 33134863664. Its totient is φ = 29357272800.

The previous prime is 31192102603. The next prime is 31192102687. The reversal of 31192102639 is 93620129113.

It is not a de Polignac number, because 31192102639 - 2⁷ = 31192102511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31192102598 and 31192102607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31192102699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53965287 + ... + 53965864.

Almost surely, 2^31192102639 is an apocalyptic number.

31192102639 is a deficient number, since it is larger than the sum of its proper divisors (1942761025).

31192102639 is a wasteful number, since it uses less digits than its factorization.

31192102639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107931185 (or 107931168 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 31192102639 in words is "thirty-one billion, one hundred ninety-two million, one hundred two thousand, six hundred thirty-nine".