320323324321 has 24 divisors (see below), whose sum is σ = 433342693952. Its totient is φ = 230402383200.

The previous prime is 320323324303. The next prime is 320323324339. The reversal of 320323324321 is 123423323023.

It is an interprime number because it is at equal distance from previous prime (320323324303) and next prime (320323324339).

It is not a de Polignac number, because 320323324321 - 2¹⁷ = 320323193249 is a prime.

It is a super-2 number, since 2×320323324321² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320323324321.

It is not an unprimeable number, because it can be changed into a prime (320323324351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14534595 + ... + 14556616.

Almost surely, 2^320323324321 is an apocalyptic number.

It is an amenable number.

320323324321 is a deficient number, since it is larger than the sum of its proper divisors (113019369631).

320323324321 is a wasteful number, since it uses less digits than its factorization.

320323324321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29091253 (or 29091242 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 320323324321 its reverse (123423323023), we get a palindrome (443746647344).

The spelling of 320323324321 in words is "three hundred twenty billion, three hundred twenty-three million, three hundred twenty-four thousand, three hundred twenty-one".