12139743107 has 2 divisors, whose sum is σ = 12139743108. Its totient is φ = 12139743106.

The previous prime is 12139743089. The next prime is 12139743151. The reversal of 12139743107 is 70134793121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12139743107 - 2⁶ = 12139743043 is a prime.

It is not a weakly prime, because it can be changed into another prime (12139742107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069871553 + 6069871554.

It is an arithmetic number, because the mean of its divisors is an integer number (6069871554).

Almost surely, 2^12139743107 is an apocalyptic number.

12139743107 is a deficient number, since it is larger than the sum of its proper divisors (1).

12139743107 is an equidigital number, since it uses as much as digits as its factorization.

12139743107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The spelling of 12139743107 in words is "twelve billion, one hundred thirty-nine million, seven hundred forty-three thousand, one hundred seven".