31108650042 has 16 divisors (see below), whose sum is σ = 63734795712. Its totient is φ = 10116634080.

The previous prime is 31108650019. The next prime is 31108650073. The reversal of 31108650042 is 24005680113.

It is a junction number, because it is equal to n+sod(n) for n = 31108649991 and 31108650009.

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, 63228718 + ... + 63229209.

It is an arithmetic number, because the mean of its divisors is an integer number (3983424732).

Almost surely, 2^31108650042 is an apocalyptic number.

31108650042 is an abundant number, since it is smaller than the sum of its proper divisors (32626145670).

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

31108650042 is a wasteful number, since it uses less digits than its factorization.

31108650042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126457973.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 31108650042 in words is "thirty-one billion, one hundred eight million, six hundred fifty thousand, forty-two".