12117435324769 has 2 divisors, whose sum is σ = 12117435324770. Its totient is φ = 12117435324768.

The previous prime is 12117435324679. The next prime is 12117435324793. The reversal of 12117435324769 is 96742353471121.

It is a happy number.

12117435324769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (12117435324679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11777855244544 + 339580080225 = 3431888^2 + 582735^2 .

It is a cyclic number.

It is not a de Polignac number, because 12117435324769 - 2³³ = 12108845390177 is a prime.

It is a super-2 number, since 2×12117435324769² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12117435325769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058717662384 + 6058717662385.

It is an arithmetic number, because the mean of its divisors is an integer number (6058717662385).

Almost surely, 2^{12117435324769} is an apocalyptic number.

It is an amenable number.

12117435324769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12117435324769 is an equidigital number, since it uses as much as digits as its factorization.

12117435324769 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 12117435324769 in words is "twelve trillion, one hundred seventeen billion, four hundred thirty-five million, three hundred twenty-four thousand, seven hundred sixty-nine".