231232123120 has 80 divisors (see below), whose sum is σ = 540173364192. Its totient is φ = 92053463040.

The previous prime is 231232123103. The next prime is 231232123139. The reversal of 231232123120 is 21321232132.

231232123120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 231232123091 and 231232123100.

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, 19940044 + ... + 19951636.

Almost surely, 2^231232123120 is an apocalyptic number.

231232123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231232123120 is an abundant number, since it is smaller than the sum of its proper divisors (308941241072).

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

231232123120 is a wasteful number, since it uses less digits than its factorization.

231232123120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12770 (or 12764 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231232123120 its reverse (21321232132), we get a palindrome (252553355252).

The spelling of 231232123120 in words is "two hundred thirty-one billion, two hundred thirty-two million, one hundred twenty-three thousand, one hundred twenty".