13111431321239 has 2 divisors, whose sum is σ = 13111431321240. Its totient is φ = 13111431321238.

The previous prime is 13111431321221. The next prime is 13111431321259. The reversal of 13111431321239 is 93212313411131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13111431321239 - 2⁴⁰ = 12011919693463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13111431321199 and 13111431321208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111431321259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555715660619 + 6555715660620.

It is an arithmetic number, because the mean of its divisors is an integer number (6555715660620).

Almost surely, 2^{13111431321239} is an apocalyptic number.

13111431321239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111431321239 is an equidigital number, since it uses as much as digits as its factorization.

13111431321239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The spelling of 13111431321239 in words is "thirteen trillion, one hundred eleven billion, four hundred thirty-one million, three hundred twenty-one thousand, two hundred thirty-nine".