12131110969 has 2 divisors, whose sum is σ = 12131110970. Its totient is φ = 12131110968.

The previous prime is 12131110967. The next prime is 12131111021. The reversal of 12131110969 is 96901113121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9232903744 + 2898207225 = 96088^2 + 53835^2 .

It is an emirp because it is prime and its reverse (96901113121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12131110969 - 2¹ = 12131110967 is a prime.

It is a super-2 number, since 2×12131110969² (a number of 21 digits) contains 22 as substring.

Together with 12131110967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12131110963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065555484 + 6065555485.

It is an arithmetic number, because the mean of its divisors is an integer number (6065555485).

Almost surely, 2^12131110969 is an apocalyptic number.

It is an amenable number.

12131110969 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131110969 is an equidigital number, since it uses as much as digits as its factorization.

12131110969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 12131110969 in words is "twelve billion, one hundred thirty-one million, one hundred ten thousand, nine hundred sixty-nine".