31023234011220 has 96 divisors (see below), whose sum is σ = 95647503684096. Its totient is φ = 7450496284800.

The previous prime is 31023234011179. The next prime is 31023234011227. The reversal of 31023234011220 is 2211043232013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023234011227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219578446 + ... + 219719685.

It is an arithmetic number, because the mean of its divisors is an integer number (996328163376).

Almost surely, 2^{31023234011220} is an apocalyptic number.

31023234011220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31023234011220 is an abundant number, since it is smaller than the sum of its proper divisors (64624269672876).

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

31023234011220 is a wasteful number, since it uses less digits than its factorization.

31023234011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439298261 (or 439298259 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31023234011220 its reverse (2211043232013), we get a palindrome (33234277243233).

The spelling of 31023234011220 in words is "thirty-one trillion, twenty-three billion, two hundred thirty-four million, eleven thousand, two hundred twenty".