100001111111171 has 2 divisors, whose sum is σ = 100001111111172. Its totient is φ = 100001111111170.

The previous prime is 100001111111159. The next prime is 100001111111191. The reversal of 100001111111171 is 171111111100001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100001111111171 is a prime.

It is not a weakly prime, because it can be changed into another prime (100001111111191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000555555585 + 50000555555586.

It is an arithmetic number, because the mean of its divisors is an integer number (50000555555586).

Almost surely, 2^{100001111111171} is an apocalyptic number.

100001111111171 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001111111171 is an equidigital number, since it uses as much as digits as its factorization.

100001111111171 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 17.

Adding to 100001111111171 its reverse (171111111100001), we get a palindrome (271112222211172).

The spelling of 100001111111171 in words is "one hundred trillion, one billion, one hundred eleven million, one hundred eleven thousand, one hundred seventy-one".