11841281 has 2 divisors, whose sum is σ = 11841282. Its totient is φ = 11841280.

The previous prime is 11841239. The next prime is 11841289. The reversal of 11841281 is 18214811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11669056 + 172225 = 3416^2 + 415^2 .

It is an emirp because it is prime and its reverse (18214811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11841281 - 2⁶ = 11841217 is a prime.

It is a super-2 number, since 2×11841281² = 280431871441922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11841281.

It is not a weakly prime, because it can be changed into another prime (11841289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5920640 + 5920641.

It is an arithmetic number, because the mean of its divisors is an integer number (5920641).

Almost surely, 2^11841281 is an apocalyptic number.

It is an amenable number.

11841281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11841281 is an equidigital number, since it uses as much as digits as its factorization.

11841281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 26.

The square root of 11841281 is about 3441.1162433141. The cubic root of 11841281 is about 227.9289880935.

The spelling of 11841281 in words is "eleven million, eight hundred forty-one thousand, two hundred eighty-one".