2311113331 has 4 divisors (see below), whose sum is σ = 2447061192. Its totient is φ = 2175165472.

The previous prime is 2311113257. The next prime is 2311113349. The reversal of 2311113331 is 1333111132.

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-2311113331 is a prime.

It is a super-2 number, since 2×2311113331² = 10682489657451831122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2311113299 and 2311113308.

It is not an unprimeable number, because it can be changed into a prime (2311113391) 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, 67973905 + ... + 67973938.

It is an arithmetic number, because the mean of its divisors is an integer number (611765298).

Almost surely, 2^2311113331 is an apocalyptic number.

2311113331 is a deficient number, since it is larger than the sum of its proper divisors (135947861).

2311113331 is a wasteful number, since it uses less digits than its factorization.

2311113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135947860.

The product of its digits is 162, while the sum is 19.

The square root of 2311113331 is about 48074.0400944210. The cubic root of 2311113331 is about 1322.1287451012.

Adding to 2311113331 its reverse (1333111132), we get a palindrome (3644224463).

The spelling of 2311113331 in words is "two billion, three hundred eleven million, one hundred thirteen thousand, three hundred thirty-one".