11131232 has 72 divisors (see below), whose sum is σ = 26429760. Its totient is φ = 4596480.

The previous prime is 11131231. The next prime is 11131247. The reversal of 11131232 is 23213111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131231) 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 11 ways as a sum of consecutive naturals, for example, 48494 + ... + 48722.

It is an arithmetic number, because the mean of its divisors is an integer number (367080).

Almost surely, 2^11131232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11131232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13214880).

11131232 is an abundant number, since it is smaller than the sum of its proper divisors (15298528).

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

11131232 is a wasteful number, since it uses less digits than its factorization.

11131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 269 counting only the distinct ones).

The product of its digits is 36, while the sum is 14.

The square root of 11131232 is about 3336.3501015331. The cubic root of 11131232 is about 223.2789313298.

Adding to 11131232 its reverse (23213111), we get a palindrome (34344343).

The spelling of 11131232 in words is "eleven million, one hundred thirty-one thousand, two hundred thirty-two".