232323331221 has 16 divisors (see below), whose sum is σ = 344209360000. Its totient is φ = 154870229664.

The previous prime is 232323331213. The next prime is 232323331241. The reversal of 232323331221 is 122133323232.

232323331221 is a `hidden beast` number, since 2 + 3 + 2 + 323 + 3 + 312 + 21 = 666.

232323331221 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 232323331221 - 2³ = 232323331213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232323331241) 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 15 ways as a sum of consecutive naturals, for example, 29280 + ... + 682278.

It is an arithmetic number, because the mean of its divisors is an integer number (21513085000).

Almost surely, 2^232323331221 is an apocalyptic number.

It is an amenable number.

232323331221 is a deficient number, since it is larger than the sum of its proper divisors (111886028779).

232323331221 is a wasteful number, since it uses less digits than its factorization.

232323331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666185 (or 666179 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 232323331221 its reverse (122133323232), we get a palindrome (354456654453).

The spelling of 232323331221 in words is "two hundred thirty-two billion, three hundred twenty-three million, three hundred thirty-one thousand, two hundred twenty-one".