31123312110232 has 32 divisors (see below), whose sum is σ = 58406846976000. Its totient is φ = 15548158663200.

The previous prime is 31123312110199. The next prime is 31123312110239. The reversal of 31123312110232 is 23201121332113.

It is a junction number, because it is equal to n+sod(n) for n = 31123312110197 and 31123312110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123312110239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43257769 + ... + 43971367.

It is an arithmetic number, because the mean of its divisors is an integer number (1825213968000).

Almost surely, 2^{31123312110232} is an apocalyptic number.

It is an amenable number.

31123312110232 is a deficient number, since it is larger than the sum of its proper divisors (27283534865768).

31123312110232 is a wasteful number, since it uses less digits than its factorization.

31123312110232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718327 (or 718323 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31123312110232 its reverse (23201121332113), we get a palindrome (54324433442345).

The spelling of 31123312110232 in words is "thirty-one trillion, one hundred twenty-three billion, three hundred twelve million, one hundred ten thousand, two hundred thirty-two".