232132023021 has 4 divisors (see below), whose sum is σ = 309509364032. Its totient is φ = 154754682012.

The previous prime is 232132023017. The next prime is 232132023059. The reversal of 232132023021 is 120320231232.

It is a happy number.

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 not a de Polignac number, because 232132023021 - 2² = 232132023017 is a prime.

It is a super-2 number, since 2×232132023021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232132023001) 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, 38688670501 + ... + 38688670506.

It is an arithmetic number, because the mean of its divisors is an integer number (77377341008).

Almost surely, 2^232132023021 is an apocalyptic number.

It is an amenable number.

232132023021 is a deficient number, since it is larger than the sum of its proper divisors (77377341011).

232132023021 is an equidigital number, since it uses as much as digits as its factorization.

232132023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77377341010.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 232132023021 its reverse (120320231232), we get a palindrome (352452254253).

The spelling of 232132023021 in words is "two hundred thirty-two billion, one hundred thirty-two million, twenty-three thousand, twenty-one".