12117836671 has 2 divisors, whose sum is σ = 12117836672. Its totient is φ = 12117836670.

The previous prime is 12117836669. The next prime is 12117836677. The reversal of 12117836671 is 17663871121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12117836671 - 2¹ = 12117836669 is a prime.

Together with 12117836669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12117836677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058918335 + 6058918336.

It is an arithmetic number, because the mean of its divisors is an integer number (6058918336).

Almost surely, 2^12117836671 is an apocalyptic number.

12117836671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12117836671 is an equidigital number, since it uses as much as digits as its factorization.

12117836671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The spelling of 12117836671 in words is "twelve billion, one hundred seventeen million, eight hundred thirty-six thousand, six hundred seventy-one".