12117342619 has 2 divisors, whose sum is σ = 12117342620. Its totient is φ = 12117342618.

The previous prime is 12117342583. The next prime is 12117342623. The reversal of 12117342619 is 91624371121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91624371121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12117342619 - 2²⁵ = 12083788187 is a prime.

It is a super-2 number, since 2×12117342619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12117342659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058671309 + 6058671310.

It is an arithmetic number, because the mean of its divisors is an integer number (6058671310).

Almost surely, 2^12117342619 is an apocalyptic number.

12117342619 is a deficient number, since it is larger than the sum of its proper divisors (1).

12117342619 is an equidigital number, since it uses as much as digits as its factorization.

12117342619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The spelling of 12117342619 in words is "twelve billion, one hundred seventeen million, three hundred forty-two thousand, six hundred nineteen".