11331313313311 has 4 divisors (see below), whose sum is σ = 11348990869824. Its totient is φ = 11313635756800.

The previous prime is 11331313313239. The next prime is 11331313313321. The reversal of 11331313313311 is 11331331313311.

It is a happy number.

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 11331313313311 - 2¹⁷ = 11331313182239 is a prime.

It is a super-2 number, since 2×11331313313311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11331313313311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331313313321) 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, 8838777295 + ... + 8838778576.

It is an arithmetic number, because the mean of its divisors is an integer number (2837247717456).

Almost surely, 2^{11331313313311} is an apocalyptic number.

11331313313311 is a deficient number, since it is larger than the sum of its proper divisors (17677556513).

11331313313311 is an equidigital number, since it uses as much as digits as its factorization.

11331313313311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17677556512.

The product of its digits is 2187, while the sum is 28.

Adding to 11331313313311 its reverse (11331331313311), we get a palindrome (22662644626622).

The spelling of 11331313313311 in words is "eleven trillion, three hundred thirty-one billion, three hundred thirteen million, three hundred thirteen thousand, three hundred eleven".