19159322113 has 2 divisors, whose sum is σ = 19159322114. Its totient is φ = 19159322112.

The previous prime is 19159322111. The next prime is 19159322123. The reversal of 19159322113 is 31122395191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17306191809 + 1853130304 = 131553^2 + 43048^2 .

It is a cyclic number.

It is not a de Polignac number, because 19159322113 - 2¹ = 19159322111 is a prime.

Together with 19159322111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (19159322111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9579661056 + 9579661057.

It is an arithmetic number, because the mean of its divisors is an integer number (9579661057).

Almost surely, 2^19159322113 is an apocalyptic number.

It is an amenable number.

19159322113 is a deficient number, since it is larger than the sum of its proper divisors (1).

19159322113 is an equidigital number, since it uses as much as digits as its factorization.

19159322113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 37.

The spelling of 19159322113 in words is "nineteen billion, one hundred fifty-nine million, three hundred twenty-two thousand, one hundred thirteen".