12131113523791 has 2 divisors, whose sum is σ = 12131113523792. Its totient is φ = 12131113523790.

The previous prime is 12131113523779. The next prime is 12131113523833. The reversal of 12131113523791 is 19732531113121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12131113523791 - 2²¹ = 12131111426639 is a prime.

It is a super-3 number, since 3×12131113523791³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131153523791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065556761895 + 6065556761896.

It is an arithmetic number, because the mean of its divisors is an integer number (6065556761896).

Almost surely, 2^{12131113523791} is an apocalyptic number.

12131113523791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131113523791 is an equidigital number, since it uses as much as digits as its factorization.

12131113523791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The spelling of 12131113523791 in words is "twelve trillion, one hundred thirty-one billion, one hundred thirteen million, five hundred twenty-three thousand, seven hundred ninety-one".