12118395697 has 2 divisors, whose sum is σ = 12118395698. Its totient is φ = 12118395696.

The previous prime is 12118395671. The next prime is 12118395701. The reversal of 12118395697 is 79659381121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11516723856 + 601671841 = 107316^2 + 24529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12118395697 is a prime.

It is not a weakly prime, because it can be changed into another prime (12118395397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6059197848 + 6059197849.

It is an arithmetic number, because the mean of its divisors is an integer number (6059197849).

Almost surely, 2^12118395697 is an apocalyptic number.

It is an amenable number.

12118395697 is a deficient number, since it is larger than the sum of its proper divisors (1).

12118395697 is an equidigital number, since it uses as much as digits as its factorization.

12118395697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 52.

The spelling of 12118395697 in words is "twelve billion, one hundred eighteen million, three hundred ninety-five thousand, six hundred ninety-seven".