304320323 has 4 divisors (see below), whose sum is σ = 304527288. Its totient is φ = 304113360.

The previous prime is 304320319. The next prime is 304320353. The reversal of 304320323 is 323023403.

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 304320323 - 2² = 304320319 is a prime.

It is a super-2 number, since 2×304320323² = 185221717981648658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304320295 and 304320304.

It is not an unprimeable number, because it can be changed into a prime (304320353) 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 3 ways as a sum of consecutive naturals, for example, 101261 + ... + 104222.

It is an arithmetic number, because the mean of its divisors is an integer number (76131822).

Almost surely, 2^304320323 is an apocalyptic number.

304320323 is a deficient number, since it is larger than the sum of its proper divisors (206965).

304320323 is a wasteful number, since it uses less digits than its factorization.

304320323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206964.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 304320323 is about 17444.7792476718. The cubic root of 304320323 is about 672.6311646980.

Adding to 304320323 its reverse (323023403), we get a palindrome (627343726).

The spelling of 304320323 in words is "three hundred four million, three hundred twenty thousand, three hundred twenty-three".