232120331021 has 4 divisors (see below), whose sum is σ = 233790261600. Its totient is φ = 230450400444.

The previous prime is 232120330963. The next prime is 232120331029. The reversal of 232120331021 is 120133021232.

232120331021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232120331021 - 2¹⁸ = 232120068877 is a prime.

It is a super-2 number, since 2×232120331021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232120330984 and 232120331002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232120331029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 834965081 + ... + 834965358.

It is an arithmetic number, because the mean of its divisors is an integer number (58447565400).

Almost surely, 2^232120331021 is an apocalyptic number.

It is an amenable number.

232120331021 is a deficient number, since it is larger than the sum of its proper divisors (1669930579).

232120331021 is a wasteful number, since it uses less digits than its factorization.

232120331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669930578.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 232120331021 its reverse (120133021232), we get a palindrome (352253352253).

The spelling of 232120331021 in words is "two hundred thirty-two billion, one hundred twenty million, three hundred thirty-one thousand, twenty-one".