232020021 has 16 divisors (see below), whose sum is σ = 323443584. Its totient is φ = 147664704.

The previous prime is 232020017. The next prime is 232020053. The reversal of 232020021 is 120020232.

232020021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 232020021 - 2² = 232020017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232019979 and 232020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232020011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35415 + ... + 41451.

It is an arithmetic number, because the mean of its divisors is an integer number (20215224).

Almost surely, 2^232020021 is an apocalyptic number.

It is an amenable number.

232020021 is a deficient number, since it is larger than the sum of its proper divisors (91423563).

232020021 is a wasteful number, since it uses less digits than its factorization.

232020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 232020021 is about 15232.2034190724. The cubic root of 232020021 is about 614.4810401618.

Adding to 232020021 its reverse (120020232), we get a palindrome (352040253).

The spelling of 232020021 in words is "two hundred thirty-two million, twenty thousand, twenty-one".