42042333013 has 2 divisors, whose sum is σ = 42042333014. Its totient is φ = 42042333012.

The previous prime is 42042332989. The next prime is 42042333059. The reversal of 42042333013 is 31033324024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37478249649 + 4564083364 = 193593^2 + 67558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42042333013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42042333413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021166506 + 21021166507.

It is an arithmetic number, because the mean of its divisors is an integer number (21021166507).

Almost surely, 2^42042333013 is an apocalyptic number.

It is an amenable number.

42042333013 is a deficient number, since it is larger than the sum of its proper divisors (1).

42042333013 is an equidigital number, since it uses as much as digits as its factorization.

42042333013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 42042333013 its reverse (31033324024), we get a palindrome (73075657037).

The spelling of 42042333013 in words is "forty-two billion, forty-two million, three hundred thirty-three thousand, thirteen".