320113331 has 8 divisors (see below), whose sum is σ = 324051840. Its totient is φ = 316182592.

The previous prime is 320113327. The next prime is 320113361. The reversal of 320113331 is 133311023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320113331 - 2² = 320113327 is a prime.

It is a super-3 number, since 3×320113331³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320113361) 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 7 ways as a sum of consecutive naturals, for example, 161261 + ... + 163233.

It is an arithmetic number, because the mean of its divisors is an integer number (40506480).

Almost surely, 2^320113331 is an apocalyptic number.

320113331 is a deficient number, since it is larger than the sum of its proper divisors (3938509).

320113331 is a wasteful number, since it uses less digits than its factorization.

320113331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 320113331 is about 17891.7112373300. The cubic root of 320113331 is about 684.0711163418.

Adding to 320113331 its reverse (133311023), we get a palindrome (453424354).

The spelling of 320113331 in words is "three hundred twenty million, one hundred thirteen thousand, three hundred thirty-one".