12163108039991 has 2 divisors, whose sum is σ = 12163108039992. Its totient is φ = 12163108039990.

The previous prime is 12163108039937. The next prime is 12163108040023. The reversal of 12163108039991 is 19993080136121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12163108039991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12163108009991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081554019995 + 6081554019996.

It is an arithmetic number, because the mean of its divisors is an integer number (6081554019996).

Almost surely, 2^{12163108039991} is an apocalyptic number.

12163108039991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12163108039991 is an equidigital number, since it uses as much as digits as its factorization.

12163108039991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 12163108039991 in words is "twelve trillion, one hundred sixty-three billion, one hundred eight million, thirty-nine thousand, nine hundred ninety-one".