111000001171 has 2 divisors, whose sum is σ = 111000001172. Its totient is φ = 111000001170.

The previous prime is 111000001081. The next prime is 111000001193. The reversal of 111000001171 is 171100000111.

It is a strong prime.

It is an emirp because it is prime and its reverse (171100000111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111000001171 - 2⁷ = 111000001043 is a prime.

It is not a weakly prime, because it can be changed into another prime (111000001471) 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, 55500000585 + 55500000586.

It is an arithmetic number, because the mean of its divisors is an integer number (55500000586).

Almost surely, 2^111000001171 is an apocalyptic number.

111000001171 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000001171 is an equidigital number, since it uses as much as digits as its factorization.

111000001171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7, while the sum is 13.

Adding to 111000001171 its reverse (171100000111), we get a palindrome (282100001282).

The spelling of 111000001171 in words is "one hundred eleven billion, one thousand, one hundred seventy-one".