12117435324767 has 4 divisors (see below), whose sum is σ = 12119778674616. Its totient is φ = 12115091974920.

The previous prime is 12117435324679. The next prime is 12117435324769. The reversal of 12117435324767 is 76742353471121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12117435324767 - 2¹⁰ = 12117435323743 is a prime.

It is a super-2 number, since 2×12117435324767² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117435324769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1171667168 + ... + 1171677509.

It is an arithmetic number, because the mean of its divisors is an integer number (3029944668654).

Almost surely, 2^{12117435324767} is an apocalyptic number.

12117435324767 is a deficient number, since it is larger than the sum of its proper divisors (2343349849).

12117435324767 is an equidigital number, since it uses as much as digits as its factorization.

12117435324767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343349848.

The product of its digits is 5927040, while the sum is 53.

Adding to 12117435324767 its reverse (76742353471121), we get a palindrome (88859788795888).

The spelling of 12117435324767 in words is "twelve trillion, one hundred seventeen billion, four hundred thirty-five million, three hundred twenty-four thousand, seven hundred sixty-seven".