12371717117 has 2 divisors, whose sum is σ = 12371717118. Its totient is φ = 12371717116.

The previous prime is 12371717053. The next prime is 12371717123. The reversal of 12371717117 is 71171717321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8520397636 + 3851319481 = 92306^2 + 62059^2 .

It is a cyclic number.

It is not a de Polignac number, because 12371717117 - 2⁶ = 12371717053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12371719117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6185858558 + 6185858559.

It is an arithmetic number, because the mean of its divisors is an integer number (6185858559).

Almost surely, 2^12371717117 is an apocalyptic number.

It is an amenable number.

12371717117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12371717117 is an equidigital number, since it uses as much as digits as its factorization.

12371717117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14406, while the sum is 38.

The spelling of 12371717117 in words is "twelve billion, three hundred seventy-one million, seven hundred seventeen thousand, one hundred seventeen".