1115171317027 has 2 divisors, whose sum is σ = 1115171317028. Its totient is φ = 1115171317026.

The previous prime is 1115171316997. The next prime is 1115171317049. The reversal of 1115171317027 is 7207131715111.

It is a strong prime.

It is an emirp because it is prime and its reverse (7207131715111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1115171317027 - 2¹⁹ = 1115170792739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115171317067) 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, 557585658513 + 557585658514.

It is an arithmetic number, because the mean of its divisors is an integer number (557585658514).

Almost surely, 2^{1115171317027} is an apocalyptic number.

1115171317027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115171317027 is an equidigital number, since it uses as much as digits as its factorization.

1115171317027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10290, while the sum is 37.

The spelling of 1115171317027 in words is "one trillion, one hundred fifteen billion, one hundred seventy-one million, three hundred seventeen thousand, twenty-seven".