42100065113 has 2 divisors, whose sum is σ = 42100065114. Its totient is φ = 42100065112.

The previous prime is 42100065079. The next prime is 42100065167. The reversal of 42100065113 is 31156000124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27189701449 + 14910363664 = 164893^2 + 122108^2 .

It is a cyclic number.

It is not a de Polignac number, because 42100065113 - 2⁸ = 42100064857 is a prime.

It is not a weakly prime, because it can be changed into another prime (42100065173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21050032556 + 21050032557.

It is an arithmetic number, because the mean of its divisors is an integer number (21050032557).

Almost surely, 2^42100065113 is an apocalyptic number.

It is an amenable number.

42100065113 is a deficient number, since it is larger than the sum of its proper divisors (1).

42100065113 is an equidigital number, since it uses as much as digits as its factorization.

42100065113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 42100065113 its reverse (31156000124), we get a palindrome (73256065237).

The spelling of 42100065113 in words is "forty-two billion, one hundred million, sixty-five thousand, one hundred thirteen".