31013144404 has 96 divisors (see below), whose sum is σ = 65601881856. Its totient is φ = 12664903680.

The previous prime is 31013144401. The next prime is 31013144411. The reversal of 31013144404 is 40444131013.

It is a super-3 number, since 3×31013144404³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013144401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1456257 + ... + 1477399.

It is an arithmetic number, because the mean of its divisors is an integer number (683352936).

Almost surely, 2^31013144404 is an apocalyptic number.

31013144404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31013144404 is an abundant number, since it is smaller than the sum of its proper divisors (34588737452).

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

31013144404 is a wasteful number, since it uses less digits than its factorization.

31013144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21265 (or 21263 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31013144404 its reverse (40444131013), we get a palindrome (71457275417).

The spelling of 31013144404 in words is "thirty-one billion, thirteen million, one hundred forty-four thousand, four hundred four".