13311122121331 has 4 divisors (see below), whose sum is σ = 13343667652600. Its totient is φ = 13278576590064.

The previous prime is 13311122121293. The next prime is 13311122121337. The reversal of 13311122121331 is 13312122111331.

13311122121331 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 not a de Polignac number, because 13311122121331 - 2³⁷ = 13173683167859 is a prime.

It is a super-2 number, since 2×13311122121331² (a number of 27 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 = 13311122121296 and 13311122121305.

It is not an unprimeable number, because it can be changed into a prime (13311122121337) 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, 16272765021 + ... + 16272765838.

It is an arithmetic number, because the mean of its divisors is an integer number (3335916913150).

Almost surely, 2^{13311122121331} is an apocalyptic number.

13311122121331 is a deficient number, since it is larger than the sum of its proper divisors (32545531269).

13311122121331 is an equidigital number, since it uses as much as digits as its factorization.

13311122121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32545531268.

The product of its digits is 648, while the sum is 25.

Adding to 13311122121331 its reverse (13312122111331), we get a palindrome (26623244232662).

The spelling of 13311122121331 in words is "thirteen trillion, three hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, three hundred thirty-one".