11160881 has 4 divisors (see below), whose sum is σ = 11169600. Its totient is φ = 11152164.

The previous prime is 11160871. The next prime is 11160889. The reversal of 11160881 is 18806111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11160881 is a prime.

It is a super-2 number, since 2×11160881² = 249130529392322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11160881.

It is not an unprimeable number, because it can be changed into a prime (11160889) 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 in 3 ways as a sum of consecutive naturals, for example, 2021 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (2792400).

Almost surely, 2^11160881 is an apocalyptic number.

It is an amenable number.

11160881 is a deficient number, since it is larger than the sum of its proper divisors (8719).

11160881 is an equidigital number, since it uses as much as digits as its factorization.

11160881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718.

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 11160881 is about 3340.7904753217. The cubic root of 11160881 is about 223.4769964997.

Adding to 11160881 its reverse (18806111), we get a palindrome (29966992).

The spelling of 11160881 in words is "eleven million, one hundred sixty thousand, eight hundred eighty-one".