323123320 has 64 divisors (see below), whose sum is σ = 817024320. Its totient is φ = 114115584.

The previous prime is 323123303. The next prime is 323123321. The reversal of 323123320 is 23321323.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323123321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1549 + ... + 25468.

It is an arithmetic number, because the mean of its divisors is an integer number (12766005).

Almost surely, 2^323123320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408512160).

323123320 is an abundant number, since it is smaller than the sum of its proper divisors (493901000).

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

323123320 is a wasteful number, since it uses less digits than its factorization.

323123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27064 (or 27060 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 323123320 is about 17975.6312823778. The cubic root of 323123320 is about 686.2085118409.

Adding to 323123320 its reverse (23321323), we get a palindrome (346444643).

The spelling of 323123320 in words is "three hundred twenty-three million, one hundred twenty-three thousand, three hundred twenty".