31145335042404 has 24 divisors (see below), whose sum is σ = 79279034653728. Its totient is φ = 9437980315840.

The previous prime is 31145335042313. The next prime is 31145335042463. The reversal of 31145335042404 is 40424053354113.

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, 117974753817 + ... + 117974754080.

It is an arithmetic number, because the mean of its divisors is an integer number (3303293110572).

Almost surely, 2^{31145335042404} is an apocalyptic number.

It is an amenable number.

31145335042404 is an abundant number, since it is smaller than the sum of its proper divisors (48133699611324).

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

31145335042404 is a wasteful number, since it uses less digits than its factorization.

31145335042404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235949507915 (or 235949507913 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 31145335042404 its reverse (40424053354113), we get a palindrome (71569388396517).

The spelling of 31145335042404 in words is "thirty-one trillion, one hundred forty-five billion, three hundred thirty-five million, forty-two thousand, four hundred four".