42006124613 has 2 divisors, whose sum is σ = 42006124614. Its totient is φ = 42006124612.

The previous prime is 42006124583. The next prime is 42006124627. The reversal of 42006124613 is 31642160024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41564200129 + 441924484 = 203873^2 + 21022^2 .

It is a cyclic number.

It is not a de Polignac number, because 42006124613 - 2¹⁰ = 42006123589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42006124513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21003062306 + 21003062307.

It is an arithmetic number, because the mean of its divisors is an integer number (21003062307).

Almost surely, 2^42006124613 is an apocalyptic number.

It is an amenable number.

42006124613 is a deficient number, since it is larger than the sum of its proper divisors (1).

42006124613 is an equidigital number, since it uses as much as digits as its factorization.

42006124613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 42006124613 its reverse (31642160024), we get a palindrome (73648284637).

The spelling of 42006124613 in words is "forty-two billion, six million, one hundred twenty-four thousand, six hundred thirteen".