323321323221 has 32 divisors (see below), whose sum is σ = 524296720640. Its totient is φ = 195705201600.

The previous prime is 323321323211. The next prime is 323321323249. The reversal of 323321323221 is 122323123323.

323321323221 is a `hidden beast` number, since 3 + 2 + 332 + 1 + 3 + 2 + 322 + 1 = 666.

It is not a de Polignac number, because 323321323221 - 2²² = 323317128917 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 (323321323211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7528945 + ... + 7571766.

It is an arithmetic number, because the mean of its divisors is an integer number (16384272520).

Almost surely, 2^323321323221 is an apocalyptic number.

It is an amenable number.

323321323221 is a deficient number, since it is larger than the sum of its proper divisors (200975397419).

323321323221 is a wasteful number, since it uses less digits than its factorization.

323321323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15100794 (or 15100788 counting only the distinct ones).

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

Adding to 323321323221 its reverse (122323123323), we get a palindrome (445644446544).

The spelling of 323321323221 in words is "three hundred twenty-three billion, three hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-one".