320323303 has 4 divisors (see below), whose sum is σ = 320391360. Its totient is φ = 320255248.

The previous prime is 320323291. The next prime is 320323321. The reversal of 320323303 is 303323023.

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 320323303 - 2⁵ = 320323271 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 (320321303) 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, 26398 + ... + 36571.

It is an arithmetic number, because the mean of its divisors is an integer number (80097840).

Almost surely, 2^320323303 is an apocalyptic number.

320323303 is a deficient number, since it is larger than the sum of its proper divisors (68057).

320323303 is an equidigital number, since it uses as much as digits as its factorization.

320323303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68056.

The product of its (nonzero) digits is 972, while the sum is 19.

The square root of 320323303 is about 17897.5781322502. The cubic root of 320323303 is about 684.2206512855.

Adding to 320323303 its reverse (303323023), we get a palindrome (623646326).

The spelling of 320323303 in words is "three hundred twenty million, three hundred twenty-three thousand, three hundred three".