31120023223132 has 24 divisors (see below), whose sum is σ = 54585477716000. Its totient is φ = 15524174244096.

The previous prime is 31120023223123. The next prime is 31120023223169. The reversal of 31120023223132 is 23132232002113.

It is a junction number, because it is equal to n+sod(n) for n = 31120023223097 and 31120023223106.

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, 76627744 + ... + 77032792.

Almost surely, 2^{31120023223132} is an apocalyptic number.

It is an amenable number.

31120023223132 is a deficient number, since it is larger than the sum of its proper divisors (23465454492868).

31120023223132 is a wasteful number, since it uses less digits than its factorization.

31120023223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449245 (or 449243 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31120023223132 its reverse (23132232002113), we get a palindrome (54252255225245).

The spelling of 31120023223132 in words is "thirty-one trillion, one hundred twenty billion, twenty-three million, two hundred twenty-three thousand, one hundred thirty-two".