304320023 has 4 divisors (see below), whose sum is σ = 347794320. Its totient is φ = 260845728.

The previous prime is 304320013. The next prime is 304320101. The reversal of 304320023 is 320023403.

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 304320023 - 2⁴ = 304320007 is a prime.

It is a super-2 number, since 2×304320023² = 185221352797441058, 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 = 304319983 and 304320010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304320013) 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, 21737138 + ... + 21737151.

It is an arithmetic number, because the mean of its divisors is an integer number (86948580).

Almost surely, 2^304320023 is an apocalyptic number.

304320023 is a deficient number, since it is larger than the sum of its proper divisors (43474297).

304320023 is an equidigital number, since it uses as much as digits as its factorization.

304320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43474296.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 304320023 is about 17444.7706491086. The cubic root of 304320023 is about 672.6309436705.

Adding to 304320023 its reverse (320023403), we get a palindrome (624343426).

The spelling of 304320023 in words is "three hundred four million, three hundred twenty thousand, twenty-three".