31380013110 has 64 divisors (see below), whose sum is σ = 75982636800. Its totient is φ = 8293698432.

The previous prime is 31380013069. The next prime is 31380013123. The reversal of 31380013110 is 1131008313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2575152 + ... + 2587308.

It is an arithmetic number, because the mean of its divisors is an integer number (1187228700).

Almost surely, 2^31380013110 is an apocalyptic number.

31380013110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31380013110 is an abundant number, since it is smaller than the sum of its proper divisors (44602623690).

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

31380013110 is a wasteful number, since it uses less digits than its factorization.

31380013110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925.

The product of its (nonzero) digits is 216, while the sum is 21.

The spelling of 31380013110 in words is "thirty-one billion, three hundred eighty million, thirteen thousand, one hundred ten".