12142342139 has 2 divisors, whose sum is σ = 12142342140. Its totient is φ = 12142342138.

The previous prime is 12142342117. The next prime is 12142342159. The reversal of 12142342139 is 93124324121.

It is a strong prime.

It is an emirp because it is prime and its reverse (93124324121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12142342139 is a prime.

It is not a weakly prime, because it can be changed into another prime (12142342159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071171069 + 6071171070.

It is an arithmetic number, because the mean of its divisors is an integer number (6071171070).

Almost surely, 2^12142342139 is an apocalyptic number.

12142342139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142342139 is an equidigital number, since it uses as much as digits as its factorization.

12142342139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The spelling of 12142342139 in words is "twelve billion, one hundred forty-two million, three hundred forty-two thousand, one hundred thirty-nine".