142042121431079 has 2 divisors, whose sum is σ = 142042121431080. Its totient is φ = 142042121431078.

The previous prime is 142042121431039. The next prime is 142042121431151. The reversal of 142042121431079 is 970134121240241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142042121431079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142042121431039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71021060715539 + 71021060715540.

It is an arithmetic number, because the mean of its divisors is an integer number (71021060715540).

Almost surely, 2^{142042121431079} is an apocalyptic number.

142042121431079 is a deficient number, since it is larger than the sum of its proper divisors (1).

142042121431079 is an equidigital number, since it uses as much as digits as its factorization.

142042121431079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 142042121431079 in words is "one hundred forty-two trillion, forty-two billion, one hundred twenty-one million, four hundred thirty-one thousand, seventy-nine".