31123090010 has 32 divisors (see below), whose sum is σ = 56333990160. Its totient is φ = 12379940352.

The previous prime is 31123090007. The next prime is 31123090109. The reversal of 31123090010 is 1009032113.

It can be written as a sum of positive squares in 8 ways, for example, as 30792177529 + 330912481 = 175477^2 + 18191^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2000582 + ... + 2016078.

Almost surely, 2^31123090010 is an apocalyptic number.

31123090010 is a deficient number, since it is larger than the sum of its proper divisors (25210900150).

31123090010 is a wasteful number, since it uses less digits than its factorization.

31123090010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16610.

The product of its (nonzero) digits is 162, while the sum is 20.

The spelling of 31123090010 in words is "thirty-one billion, one hundred twenty-three million, ninety thousand, ten".