42512243339 has 2 divisors, whose sum is σ = 42512243340. Its totient is φ = 42512243338.

The previous prime is 42512243309. The next prime is 42512243351. The reversal of 42512243339 is 93334221524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42512243339 - 2⁸ = 42512243083 is a prime.

It is not a weakly prime, because it can be changed into another prime (42512243309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21256121669 + 21256121670.

It is an arithmetic number, because the mean of its divisors is an integer number (21256121670).

Almost surely, 2^42512243339 is an apocalyptic number.

42512243339 is a deficient number, since it is larger than the sum of its proper divisors (1).

42512243339 is an equidigital number, since it uses as much as digits as its factorization.

42512243339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 38.

The spelling of 42512243339 in words is "forty-two billion, five hundred twelve million, two hundred forty-three thousand, three hundred thirty-nine".