142315039991 has 2 divisors, whose sum is σ = 142315039992. Its totient is φ = 142315039990.

The previous prime is 142315039987. The next prime is 142315040009. The reversal of 142315039991 is 199930513241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142315039991 - 2² = 142315039987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142315039961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71157519995 + 71157519996.

It is an arithmetic number, because the mean of its divisors is an integer number (71157519996).

Almost surely, 2^142315039991 is an apocalyptic number.

142315039991 is a deficient number, since it is larger than the sum of its proper divisors (1).

142315039991 is an equidigital number, since it uses as much as digits as its factorization.

142315039991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 47.

The spelling of 142315039991 in words is "one hundred forty-two billion, three hundred fifteen million, thirty-nine thousand, nine hundred ninety-one".