31023022132120 has 32 divisors (see below), whose sum is σ = 69866014982400. Its totient is φ = 12397792819968.

The previous prime is 31023022132111. The next prime is 31023022132169. The reversal of 31023022132120 is 2123122032013.

It is a junction number, because it is equal to n+sod(n) for n = 31023022132091 and 31023022132100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356707005 + ... + 356793964.

It is an arithmetic number, because the mean of its divisors is an integer number (2183312968200).

Almost surely, 2^{31023022132120} is an apocalyptic number.

It is an amenable number.

31023022132120 is an abundant number, since it is smaller than the sum of its proper divisors (38842992850280).

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

31023022132120 is a wasteful number, since it uses less digits than its factorization.

31023022132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713502067 (or 713502063 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31023022132120 its reverse (2123122032013), we get a palindrome (33146144164133).

The spelling of 31023022132120 in words is "thirty-one trillion, twenty-three billion, twenty-two million, one hundred thirty-two thousand, one hundred twenty".