111112141211171 has 2 divisors, whose sum is σ = 111112141211172. Its totient is φ = 111112141211170.

The previous prime is 111112141211161. The next prime is 111112141211233. The reversal of 111112141211171 is 171112141211111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111112141211171 - 2¹⁴ = 111112141194787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111112141211171.

It is not a weakly prime, because it can be changed into another prime (111112141211161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556070605585 + 55556070605586.

It is an arithmetic number, because the mean of its divisors is an integer number (55556070605586).

Almost surely, 2^{111112141211171} is an apocalyptic number.

111112141211171 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112141211171 is an equidigital number, since it uses as much as digits as its factorization.

111112141211171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112, while the sum is 26.

Adding to 111112141211171 its reverse (171112141211111), we get a palindrome (282224282422282).

The spelling of 111112141211171 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred forty-one million, two hundred eleven thousand, one hundred seventy-one".