320111331311 has 8 divisors (see below), whose sum is σ = 328815421200. Its totient is φ = 311410001088.

The previous prime is 320111331307. The next prime is 320111331329. The reversal of 320111331311 is 113133111023.

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 320111331311 - 2² = 320111331307 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 (320111331361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453686 + ... + 919811.

It is an arithmetic number, because the mean of its divisors is an integer number (41101927650).

Almost surely, 2^320111331311 is an apocalyptic number.

320111331311 is a deficient number, since it is larger than the sum of its proper divisors (8704089889).

320111331311 is a wasteful number, since it uses less digits than its factorization.

320111331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379833.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 320111331311 its reverse (113133111023), we get a palindrome (433244442334).

The spelling of 320111331311 in words is "three hundred twenty billion, one hundred eleven million, three hundred thirty-one thousand, three hundred eleven".