42042321239 has 2 divisors, whose sum is σ = 42042321240. Its totient is φ = 42042321238.

The previous prime is 42042321227. The next prime is 42042321247. The reversal of 42042321239 is 93212324024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42042321239 - 2²⁴ = 42025544023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42048321239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021160619 + 21021160620.

It is an arithmetic number, because the mean of its divisors is an integer number (21021160620).

Almost surely, 2^42042321239 is an apocalyptic number.

42042321239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42042321239 is an equidigital number, since it uses as much as digits as its factorization.

42042321239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 42042321239 in words is "forty-two billion, forty-two million, three hundred twenty-one thousand, two hundred thirty-nine".