13122231311 has 12 divisors (see below), whose sum is σ = 15271921080. Its totient is φ = 11242259280.

The previous prime is 13122231299. The next prime is 13122231319. The reversal of 13122231311 is 11313222131.

It is a happy number.

It is not a de Polignac number, because 13122231311 - 2¹⁸ = 13121969167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122231319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41585 + ... + 167253.

It is an arithmetic number, because the mean of its divisors is an integer number (1272660090).

Almost surely, 2^13122231311 is an apocalyptic number.

13122231311 is a deficient number, since it is larger than the sum of its proper divisors (2149689769).

13122231311 is a wasteful number, since it uses less digits than its factorization.

13122231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127814 (or 127807 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 13122231311 its reverse (11313222131), we get a palindrome (24435453442).

The spelling of 13122231311 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty-one thousand, three hundred eleven".