11533128 has 32 divisors (see below), whose sum is σ = 28916160. Its totient is φ = 3833280.

The previous prime is 11533117. The next prime is 11533141. The reversal of 11533128 is 82133511.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 11533098 and 11533107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15501 + ... + 16227.

It is an arithmetic number, because the mean of its divisors is an integer number (903630).

Almost surely, 2^11533128 is an apocalyptic number.

It is an amenable number.

11533128 is an abundant number, since it is smaller than the sum of its proper divisors (17383032).

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

11533128 is a wasteful number, since it uses less digits than its factorization.

11533128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1393 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 11533128 is about 3396.0459360851. The cubic root of 11533128 is about 225.9344054813.

Adding to 11533128 its reverse (82133511), we get a palindrome (93666639).

The spelling of 11533128 in words is "eleven million, five hundred thirty-three thousand, one hundred twenty-eight".