42343031239 has 2 divisors, whose sum is σ = 42343031240. Its totient is φ = 42343031238.

The previous prime is 42343031209. The next prime is 42343031281. The reversal of 42343031239 is 93213034324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42343031239 - 2²³ = 42334642631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42343031209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21171515619 + 21171515620.

It is an arithmetic number, because the mean of its divisors is an integer number (21171515620).

Almost surely, 2^42343031239 is an apocalyptic number.

42343031239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42343031239 is an equidigital number, since it uses as much as digits as its factorization.

42343031239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 34.

The spelling of 42343031239 in words is "forty-two billion, three hundred forty-three million, thirty-one thousand, two hundred thirty-nine".