323321021320 has 64 divisors (see below), whose sum is σ = 793664827200. Its totient is φ = 117562586880.

The previous prime is 323321021299. The next prime is 323321021327. The reversal of 323321021320 is 23120123323.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 323321021291 and 323321021300.

It is not an unprimeable number, because it can be changed into a prime (323321021327) 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, 11142591 + ... + 11171569.

It is an arithmetic number, because the mean of its divisors is an integer number (12401012925).

Almost surely, 2^323321021320 is an apocalyptic number.

It is an amenable number.

323321021320 is an abundant number, since it is smaller than the sum of its proper divisors (470343805880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

323321021320 is a wasteful number, since it uses less digits than its factorization.

323321021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54358 (or 54354 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 323321021320 its reverse (23120123323), we get a palindrome (346441144643).

The spelling of 323321021320 in words is "three hundred twenty-three billion, three hundred twenty-one million, twenty-one thousand, three hundred twenty".