31503895134 has 16 divisors (see below), whose sum is σ = 66714131088. Its totient is φ = 9883574912.

The previous prime is 31503895123. The next prime is 31503895147. The reversal of 31503895134 is 43159830513.

It is a super-2 number, since 2×31503895134² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 154430757 + ... + 154430960.

It is an arithmetic number, because the mean of its divisors is an integer number (4169633193).

Almost surely, 2^31503895134 is an apocalyptic number.

31503895134 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31503895134 is an abundant number, since it is smaller than the sum of its proper divisors (35210235954).

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

31503895134 is a wasteful number, since it uses less digits than its factorization.

31503895134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308861739.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 31503895134 in words is "thirty-one billion, five hundred three million, eight hundred ninety-five thousand, one hundred thirty-four".