231032122020 has 120 divisors (see below), whose sum is σ = 828292981824. Its totient is φ = 52807339584.

The previous prime is 231032122019. The next prime is 231032122043. The reversal of 231032122020 is 20221230132.

231032122020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231032121984 and 231032122002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10175262 + ... + 10197941.

Almost surely, 2^231032122020 is an apocalyptic number.

231032122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231032122020 is an abundant number, since it is smaller than the sum of its proper divisors (597260859804).

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

231032122020 is a wasteful number, since it uses less digits than its factorization.

231032122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20373231 (or 20373220 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 231032122020 its reverse (20221230132), we get a palindrome (251253352152).

The spelling of 231032122020 in words is "two hundred thirty-one billion, thirty-two million, one hundred twenty-two thousand, twenty".