321300320 has 96 divisors (see below), whose sum is σ = 832156416. Its totient is φ = 116262400.

The previous prime is 321300311. The next prime is 321300377. The reversal of 321300320 is 23003123.

It is a junction number, because it is equal to n+sod(n) for n = 321300295 and 321300304.

It is a congruent number.

It is an unprimeable number.

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, 547067 + ... + 547653.

It is an arithmetic number, because the mean of its divisors is an integer number (8668296).

Almost surely, 2^321300320 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 321300320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416078208).

321300320 is an abundant number, since it is smaller than the sum of its proper divisors (510856096).

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

321300320 is a wasteful number, since it uses less digits than its factorization.

321300320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 321300320 is about 17924.8520217044. The cubic root of 321300320 is about 684.9155915671.

Adding to 321300320 its reverse (23003123), we get a palindrome (344303443).

The spelling of 321300320 in words is "three hundred twenty-one million, three hundred thousand, three hundred twenty".