13131322311 has 16 divisors (see below), whose sum is σ = 18763444224. Its totient is φ = 8147281824.

The previous prime is 13131322307. The next prime is 13131322331. The reversal of 13131322311 is 11322313131.

It is a happy number.

It is not a de Polignac number, because 13131322311 - 2² = 13131322307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131322301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2569191 + ... + 2574296.

It is an arithmetic number, because the mean of its divisors is an integer number (1172715264).

Almost surely, 2^13131322311 is an apocalyptic number.

13131322311 is a deficient number, since it is larger than the sum of its proper divisors (5632121913).

13131322311 is a wasteful number, since it uses less digits than its factorization.

13131322311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143550.

The product of its digits is 324, while the sum is 21.

Adding to 13131322311 its reverse (11322313131), we get a palindrome (24453635442).

The spelling of 13131322311 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred eleven".