1173911226193 has 2 divisors, whose sum is σ = 1173911226194. Its totient is φ = 1173911226192.

The previous prime is 1173911226157. The next prime is 1173911226221. The reversal of 1173911226193 is 3916221193711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034160861969 + 139750364224 = 1016937^2 + 373832^2 .

It is an emirp because it is prime and its reverse (3916221193711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1173911226193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1173911226113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586955613096 + 586955613097.

It is an arithmetic number, because the mean of its divisors is an integer number (586955613097).

Almost surely, 2^{1173911226193} is an apocalyptic number.

It is an amenable number.

1173911226193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173911226193 is an equidigital number, since it uses as much as digits as its factorization.

1173911226193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 46.

The spelling of 1173911226193 in words is "one trillion, one hundred seventy-three billion, nine hundred eleven million, two hundred twenty-six thousand, one hundred ninety-three".