232120232021 has 4 divisors (see below), whose sum is σ = 232182818700. Its totient is φ = 232057645344.

The previous prime is 232120232011. The next prime is 232120232059. The reversal of 232120232021 is 120232021232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96029332996 + 136090899025 = 309886^2 + 368905^2 .

It is a cyclic number.

It is not a de Polignac number, because 232120232021 - 2²² = 232116037717 is a prime.

It is a super-2 number, since 2×232120232021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 232120231984 and 232120232002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232120232011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31287776 + ... + 31295193.

It is an arithmetic number, because the mean of its divisors is an integer number (58045704675).

Almost surely, 2^232120232021 is an apocalyptic number.

It is an amenable number.

232120232021 is a deficient number, since it is larger than the sum of its proper divisors (62586679).

232120232021 is an equidigital number, since it uses as much as digits as its factorization.

232120232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62586678.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 232120232021 its reverse (120232021232), we get a palindrome (352352253253).

The spelling of 232120232021 in words is "two hundred thirty-two billion, one hundred twenty million, two hundred thirty-two thousand, twenty-one".