123231230112120 has 64 divisors (see below), whose sum is σ = 398131666521120. Its totient is φ = 30333841257984.

The previous prime is 123231230112103. The next prime is 123231230112173. The reversal of 123231230112120 is 21211032132321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39497187579 + ... + 39497190698.

Almost surely, 2^{123231230112120} is an apocalyptic number.

123231230112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123231230112120 is an abundant number, since it is smaller than the sum of its proper divisors (274900436409000).

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

123231230112120 is a wasteful number, since it uses less digits than its factorization.

123231230112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78994378304 (or 78994378300 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123231230112120 its reverse (21211032132321), we get a palindrome (144442262244441).

The spelling of 123231230112120 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, two hundred thirty million, one hundred twelve thousand, one hundred twenty".