42202020239 has 2 divisors, whose sum is σ = 42202020240. Its totient is φ = 42202020238.

The previous prime is 42202020101. The next prime is 42202020253. The reversal of 42202020239 is 93202020224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42202020239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42202020299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101010119 + 21101010120.

It is an arithmetic number, because the mean of its divisors is an integer number (21101010120).

Almost surely, 2^42202020239 is an apocalyptic number.

42202020239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42202020239 is an equidigital number, since it uses as much as digits as its factorization.

42202020239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 42202020239 in words is "forty-two billion, two hundred two million, twenty thousand, two hundred thirty-nine".