31130694642 has 16 divisors (see below), whose sum is σ = 62533275840. Its totient is φ = 10331583792.

The previous prime is 31130694619. The next prime is 31130694659. The reversal of 31130694642 is 24649603113.

It is a self number, because there is not a number n which added to its sum of digits gives 31130694642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11327118 + ... + 11329865.

It is an arithmetic number, because the mean of its divisors is an integer number (3908329740).

Almost surely, 2^31130694642 is an apocalyptic number.

31130694642 is an abundant number, since it is smaller than the sum of its proper divisors (31402581198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31130694642 is a wasteful number, since it uses less digits than its factorization.

31130694642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22657217.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 31130694642 in words is "thirty-one billion, one hundred thirty million, six hundred ninety-four thousand, six hundred forty-two".