111141271 has 2 divisors, whose sum is σ = 111141272. Its totient is φ = 111141270.

The previous prime is 111141269. The next prime is 111141319. The reversal of 111141271 is 172141111.

It is a weak prime.

It is an emirp because it is prime and its reverse (172141111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111141271 - 2¹ = 111141269 is a prime.

Together with 111141269, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111141571) 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, 55570635 + 55570636.

It is an arithmetic number, because the mean of its divisors is an integer number (55570636).

Almost surely, 2^111141271 is an apocalyptic number.

111141271 is a deficient number, since it is larger than the sum of its proper divisors (1).

111141271 is an equidigital number, since it uses as much as digits as its factorization.

111141271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56, while the sum is 19.

The square root of 111141271 is about 10542.3560459700. The cubic root of 111141271 is about 480.7933509208.

Adding to 111141271 its reverse (172141111), we get a palindrome (283282382).

The spelling of 111141271 in words is "one hundred eleven million, one hundred forty-one thousand, two hundred seventy-one".