320323020323 has 4 divisors (see below), whose sum is σ = 320325196728. Its totient is φ = 320320843920.

The previous prime is 320323020287. The next prime is 320323020361. The reversal of 320323020323 is 323020323023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320323020323 - 2²² = 320318826019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320323020623) 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 3 ways as a sum of consecutive naturals, for example, 850061 + ... + 1167582.

It is an arithmetic number, because the mean of its divisors is an integer number (80081299182).

Almost surely, 2^320323020323 is an apocalyptic number.

320323020323 is a deficient number, since it is larger than the sum of its proper divisors (2176405).

320323020323 is a wasteful number, since it uses less digits than its factorization.

320323020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176404.

The product of its (nonzero) digits is 3888, while the sum is 23.

Adding to 320323020323 its reverse (323020323023), we get a palindrome (643343343346).

The spelling of 320323020323 in words is "three hundred twenty billion, three hundred twenty-three million, twenty thousand, three hundred twenty-three".