19101423161 has 2 divisors, whose sum is σ = 19101423162. Its totient is φ = 19101423160.

The previous prime is 19101423113. The next prime is 19101423167. The reversal of 19101423161 is 16132410191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18551802025 + 549621136 = 136205^2 + 23444^2 .

It is an emirp because it is prime and its reverse (16132410191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19101423161 - 2²⁶ = 19034314297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (19101423167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9550711580 + 9550711581.

It is an arithmetic number, because the mean of its divisors is an integer number (9550711581).

Almost surely, 2^19101423161 is an apocalyptic number.

It is an amenable number.

19101423161 is a deficient number, since it is larger than the sum of its proper divisors (1).

19101423161 is an equidigital number, since it uses as much as digits as its factorization.

19101423161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 19101423161 in words is "nineteen billion, one hundred one million, four hundred twenty-three thousand, one hundred sixty-one".