320313303 has 48 divisors (see below), whose sum is σ = 501935616. Its totient is φ = 196116480.

The previous prime is 320313281. The next prime is 320313307. The reversal of 320313303 is 303313023.

320313303 is a `hidden beast` number, since 320 + 313 + 30 + 3 = 666.

It is not a de Polignac number, because 320313303 - 2⁶ = 320313239 is a prime.

It is a super-2 number, since 2×320313303² = 205201224157539618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320313307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1676938 + ... + 1677128.

It is an arithmetic number, because the mean of its divisors is an integer number (10456992).

Almost surely, 2^320313303 is an apocalyptic number.

320313303 is a deficient number, since it is larger than the sum of its proper divisors (181622313).

320313303 is a wasteful number, since it uses less digits than its factorization.

320313303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 320313303 is about 17897.2987626625. The cubic root of 320313303 is about 684.2135311066.

Adding to 320313303 its reverse (303313023), we get a palindrome (623626326).

The spelling of 320313303 in words is "three hundred twenty million, three hundred thirteen thousand, three hundred three".