320303313331 has 4 divisors (see below), whose sum is σ = 331348255200. Its totient is φ = 309258371464.

The previous prime is 320303313269. The next prime is 320303313349. The reversal of 320303313331 is 133313303023.

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 320303313331 - 2¹¹ = 320303311283 is a prime.

It is a super-2 number, since 2×320303313331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320303313296 and 320303313305.

It is not an unprimeable number, because it can be changed into a prime (320303313131) 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, 5522470891 + ... + 5522470948.

It is an arithmetic number, because the mean of its divisors is an integer number (82837063800).

Almost surely, 2^320303313331 is an apocalyptic number.

320303313331 is a deficient number, since it is larger than the sum of its proper divisors (11044941869).

320303313331 is a wasteful number, since it uses less digits than its factorization.

320303313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11044941868.

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 320303313331 its reverse (133313303023), we get a palindrome (453616616354).

The spelling of 320303313331 in words is "three hundred twenty billion, three hundred three million, three hundred thirteen thousand, three hundred thirty-one".