11281271 has 2 divisors, whose sum is σ = 11281272. Its totient is φ = 11281270.

The previous prime is 11281267. The next prime is 11281289. The reversal of 11281271 is 17218211.

It is a weak prime.

It is an emirp because it is prime and its reverse (17218211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11281271 - 2² = 11281267 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11281211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5640635 + 5640636.

It is an arithmetic number, because the mean of its divisors is an integer number (5640636).

Almost surely, 2^11281271 is an apocalyptic number.

11281271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11281271 is an equidigital number, since it uses as much as digits as its factorization.

11281271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 23.

The square root of 11281271 is about 3358.7603367909. The cubic root of 11281271 is about 224.2776571254.

Adding to 11281271 its reverse (17218211), we get a palindrome (28499482).

The spelling of 11281271 in words is "eleven million, two hundred eighty-one thousand, two hundred seventy-one".