31090106793 has 4 divisors (see below), whose sum is σ = 41453475728. Its totient is φ = 20726737860.

The previous prime is 31090106783. The next prime is 31090106807. The reversal of 31090106793 is 39760109013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-31090106793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31090106783) 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 in 3 ways as a sum of consecutive naturals, for example, 5181684463 + ... + 5181684468.

It is an arithmetic number, because the mean of its divisors is an integer number (10363368932).

Almost surely, 2^31090106793 is an apocalyptic number.

It is an amenable number.

31090106793 is a deficient number, since it is larger than the sum of its proper divisors (10363368935).

31090106793 is a wasteful number, since it uses less digits than its factorization.

31090106793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10363368934.

The product of its (nonzero) digits is 30618, while the sum is 39.

The spelling of 31090106793 in words is "thirty-one billion, ninety million, one hundred six thousand, seven hundred ninety-three".