3111313320331 has 4 divisors (see below), whose sum is σ = 3275066653000. Its totient is φ = 2947559987664.

The previous prime is 3111313320317. The next prime is 3111313320371. The reversal of 3111313320331 is 1330233131113.

3111313320331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111313320331 is a prime.

It is a super-2 number, since 2×3111313320331² (a number of 26 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 = 3111313320296 and 3111313320305.

It is not an unprimeable number, because it can be changed into a prime (3111313320371) 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, 81876666306 + ... + 81876666343.

It is an arithmetic number, because the mean of its divisors is an integer number (818766663250).

Almost surely, 2^{3111313320331} is an apocalyptic number.

3111313320331 is a deficient number, since it is larger than the sum of its proper divisors (163753332669).

3111313320331 is a wasteful number, since it uses less digits than its factorization.

3111313320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163753332668.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 3111313320331 its reverse (1330233131113), we get a palindrome (4441546451444).

The spelling of 3111313320331 in words is "three trillion, one hundred eleven billion, three hundred thirteen million, three hundred twenty thousand, three hundred thirty-one".