11131224 has 32 divisors (see below), whose sum is σ = 29969520. Its totient is φ = 3424896.

The previous prime is 11131187. The next prime is 11131229. The reversal of 11131224 is 42213111.

11131224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17527 + ... + 18150.

Almost surely, 2^11131224 is an apocalyptic number.

It is an amenable number.

11131224 is an abundant number, since it is smaller than the sum of its proper divisors (18838296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11131224 is a wasteful number, since it uses less digits than its factorization.

11131224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35699 (or 35695 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 11131224 is about 3336.3489026180. The cubic root of 11131224 is about 223.2788778397.

Adding to 11131224 its reverse (42213111), we get a palindrome (53344335).

The spelling of 11131224 in words is "eleven million, one hundred thirty-one thousand, two hundred twenty-four".