231032332020 has 48 divisors (see below), whose sum is σ = 739303463808. Its totient is φ = 52807390080.

The previous prime is 231032331967. The next prime is 231032332039. The reversal of 231032332020 is 20233230132.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 275038071 + ... + 275038910.

It is an arithmetic number, because the mean of its divisors is an integer number (15402155496).

Almost surely, 2^231032332020 is an apocalyptic number.

231032332020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231032332020 is an abundant number, since it is smaller than the sum of its proper divisors (508271131788).

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

231032332020 is a wasteful number, since it uses less digits than its factorization.

231032332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550077000 (or 550076998 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 231032332020 its reverse (20233230132), we get a palindrome (251265562152).

The spelling of 231032332020 in words is "two hundred thirty-one billion, thirty-two million, three hundred thirty-two thousand, twenty".