11263281 has 16 divisors (see below), whose sum is σ = 15960000. Its totient is φ = 7051968.

The previous prime is 11263279. The next prime is 11263283. The reversal of 11263281 is 18236211.

It is an interprime number because it is at equal distance from previous prime (11263279) and next prime (11263283).

It is not a de Polignac number, because 11263281 - 2¹ = 11263279 is a prime.

It is a super-2 number, since 2×11263281² = 253722997769922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11263283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (997500).

Almost surely, 2^11263281 is an apocalyptic number.

It is an amenable number.

11263281 is a deficient number, since it is larger than the sum of its proper divisors (4696719).

11263281 is a wasteful number, since it uses less digits than its factorization.

11263281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568.

The product of its digits is 576, while the sum is 24.

The square root of 11263281 is about 3356.0811968723. The cubic root of 11263281 is about 224.1583767812.

Adding to 11263281 its reverse (18236211), we get a palindrome (29499492).

The spelling of 11263281 in words is "eleven million, two hundred sixty-three thousand, two hundred eighty-one".