31213432010044 has 24 divisors (see below), whose sum is σ = 54759954410000. Its totient is φ = 15567761589120.

The previous prime is 31213432010021. The next prime is 31213432010069. The reversal of 31213432010044 is 44001023431213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31213432009994 and 31213432010021.

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, 196264 + ... + 7903504.

Almost surely, 2^{31213432010044} is an apocalyptic number.

It is an amenable number.

31213432010044 is a deficient number, since it is larger than the sum of its proper divisors (23546522399956).

31213432010044 is a wasteful number, since it uses less digits than its factorization.

31213432010044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709773 (or 7709771 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31213432010044 its reverse (44001023431213), we get a palindrome (75214455441257).

The spelling of 31213432010044 in words is "thirty-one trillion, two hundred thirteen billion, four hundred thirty-two million, ten thousand, forty-four".