112011172171 has 2 divisors, whose sum is σ = 112011172172. Its totient is φ = 112011172170.

The previous prime is 112011172121. The next prime is 112011172193. The reversal of 112011172171 is 171271110211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112011172171 - 2⁷ = 112011172043 is a prime.

It is a super-2 number, since 2×112011172171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112011172121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56005586085 + 56005586086.

It is an arithmetic number, because the mean of its divisors is an integer number (56005586086).

Almost surely, 2^112011172171 is an apocalyptic number.

112011172171 is a deficient number, since it is larger than the sum of its proper divisors (1).

112011172171 is an equidigital number, since it uses as much as digits as its factorization.

112011172171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 25.

Adding to 112011172171 its reverse (171271110211), we get a palindrome (283282282382).

The spelling of 112011172171 in words is "one hundred twelve billion, eleven million, one hundred seventy-two thousand, one hundred seventy-one".