320332323 has 4 divisors (see below), whose sum is σ = 427109768. Its totient is φ = 213554880.

The previous prime is 320332319. The next prime is 320332349. The reversal of 320332323 is 323233023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323233023 = 3 ⋅107744341.

It is not a de Polignac number, because 320332323 - 2² = 320332319 is a prime.

It is a super-2 number, since 2×320332323² = 205225594317152658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320332323.

It is not an unprimeable number, because it can be changed into a prime (320332373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53388718 + ... + 53388723.

It is an arithmetic number, because the mean of its divisors is an integer number (106777442).

Almost surely, 2^320332323 is an apocalyptic number.

320332323 is a deficient number, since it is larger than the sum of its proper divisors (106777445).

320332323 is a wasteful number, since it uses less digits than its factorization.

320332323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106777444.

The product of its (nonzero) digits is 1944, while the sum is 21.

The square root of 320332323 is about 17897.8301198777. The cubic root of 320332323 is about 684.2270735598.

Adding to 320332323 its reverse (323233023), we get a palindrome (643565346).

The spelling of 320332323 in words is "three hundred twenty million, three hundred thirty-two thousand, three hundred twenty-three".