123031132412220 has 48 divisors (see below), whose sum is σ = 382763523061920. Its totient is φ = 32808301976448.

The previous prime is 123031132412219. The next prime is 123031132412291. The reversal of 123031132412220 is 22214231130321.

123031132412220 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 311 + 324 + 1 + 2 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113917714657 + ... + 113917715736.

It is an arithmetic number, because the mean of its divisors is an integer number (7974240063790).

Almost surely, 2^{123031132412220} is an apocalyptic number.

123031132412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123031132412220 is an abundant number, since it is smaller than the sum of its proper divisors (259732390649700).

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

123031132412220 is a wasteful number, since it uses less digits than its factorization.

123031132412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227835430411 (or 227835430403 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 123031132412220 its reverse (22214231130321), we get a palindrome (145245363542541).

The spelling of 123031132412220 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred thirty-two million, four hundred twelve thousand, two hundred twenty".