42113433613 has 2 divisors, whose sum is σ = 42113433614. Its totient is φ = 42113433612.

The previous prime is 42113433563. The next prime is 42113433721. The reversal of 42113433613 is 31633431124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27737903209 + 14375530404 = 166547^2 + 119898^2 .

It is a cyclic number.

It is not a de Polignac number, because 42113433613 - 2²⁵ = 42079879181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42113433013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21056716806 + 21056716807.

It is an arithmetic number, because the mean of its divisors is an integer number (21056716807).

Almost surely, 2^42113433613 is an apocalyptic number.

It is an amenable number.

42113433613 is a deficient number, since it is larger than the sum of its proper divisors (1).

42113433613 is an equidigital number, since it uses as much as digits as its factorization.

42113433613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

Adding to 42113433613 its reverse (31633431124), we get a palindrome (73746864737).

The spelling of 42113433613 in words is "forty-two billion, one hundred thirteen million, four hundred thirty-three thousand, six hundred thirteen".