12117435324679 has 2 divisors, whose sum is σ = 12117435324680. Its totient is φ = 12117435324678.

The previous prime is 12117435324667. The next prime is 12117435324769. The reversal of 12117435324679 is 97642353471121.

It is a happy number.

12117435324679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (12117435324769) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (97642353471121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12117435324679 - 2⁷ = 12117435324551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12117435321679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058717662339 + 6058717662340.

It is an arithmetic number, because the mean of its divisors is an integer number (6058717662340).

Almost surely, 2^{12117435324679} is an apocalyptic number.

12117435324679 is a deficient number, since it is larger than the sum of its proper divisors (1).

12117435324679 is an equidigital number, since it uses as much as digits as its factorization.

12117435324679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 55.

The spelling of 12117435324679 in words is "twelve trillion, one hundred seventeen billion, four hundred thirty-five million, three hundred twenty-four thousand, six hundred seventy-nine".