320304103 has 4 divisors (see below), whose sum is σ = 366061840. Its totient is φ = 274546368.

The previous prime is 320304077. The next prime is 320304113. The reversal of 320304103 is 301403023.

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 320304103 - 2⁹ = 320303591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320304113) 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, 22878858 + ... + 22878871.

It is an arithmetic number, because the mean of its divisors is an integer number (91515460).

Almost surely, 2^320304103 is an apocalyptic number.

320304103 is a deficient number, since it is larger than the sum of its proper divisors (45757737).

320304103 is an equidigital number, since it uses as much as digits as its factorization.

320304103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45757736.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 320304103 is about 17897.0417387902. The cubic root of 320304103 is about 684.2069804111.

Adding to 320304103 its reverse (301403023), we get a palindrome (621707126).

The spelling of 320304103 in words is "three hundred twenty million, three hundred four thousand, one hundred three".