111101011000171 has 2 divisors, whose sum is σ = 111101011000172. Its totient is φ = 111101011000170.

The previous prime is 111101011000169. The next prime is 111101011000207. The reversal of 111101011000171 is 171000110101111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111101011000171 - 2¹ = 111101011000169 is a prime.

Together with 111101011000169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111101011000871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550505500085 + 55550505500086.

It is an arithmetic number, because the mean of its divisors is an integer number (55550505500086).

Almost surely, 2^{111101011000171} is an apocalyptic number.

111101011000171 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101011000171 is an equidigital number, since it uses as much as digits as its factorization.

111101011000171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7, while the sum is 16.

Adding to 111101011000171 its reverse (171000110101111), we get a palindrome (282101121101282).

The spelling of 111101011000171 in words is "one hundred eleven trillion, one hundred one billion, eleven million, one hundred seventy-one", and thus it is an aban number.