12138102719 has 2 divisors, whose sum is σ = 12138102720. Its totient is φ = 12138102718.

The previous prime is 12138102707. The next prime is 12138102727. The reversal of 12138102719 is 91720183121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12138102719 - 2³² = 7843135423 is a prime.

It is a super-2 number, since 2×12138102719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12138102619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069051359 + 6069051360.

It is an arithmetic number, because the mean of its divisors is an integer number (6069051360).

Almost surely, 2^12138102719 is an apocalyptic number.

12138102719 is a deficient number, since it is larger than the sum of its proper divisors (1).

12138102719 is an equidigital number, since it uses as much as digits as its factorization.

12138102719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 12138102719 in words is "twelve billion, one hundred thirty-eight million, one hundred two thousand, seven hundred nineteen".