232012321021 has 16 divisors (see below), whose sum is σ = 253620134208. Its totient is φ = 210942547200.

The previous prime is 232012321019. The next prime is 232012321031. The reversal of 232012321021 is 120123210232.

It is a cyclic number.

It is not a de Polignac number, because 232012321021 - 2¹ = 232012321019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232012321021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232012321001) 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, 12124341 + ... + 12143461.

It is an arithmetic number, because the mean of its divisors is an integer number (15851258388).

Almost surely, 2^232012321021 is an apocalyptic number.

It is an amenable number.

232012321021 is a deficient number, since it is larger than the sum of its proper divisors (21607813187).

232012321021 is a wasteful number, since it uses less digits than its factorization.

232012321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33132.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 232012321021 its reverse (120123210232), we get a palindrome (352135531253).

It can be divided in two parts, 2 and 32012321021, that added together give a palindrome (32012321023).

The spelling of 232012321021 in words is "two hundred thirty-two billion, twelve million, three hundred twenty-one thousand, twenty-one".