11521233 has 12 divisors (see below), whose sum is σ = 16723408. Its totient is φ = 7643160.

The previous prime is 11521199. The next prime is 11521249. The reversal of 11521233 is 33212511.

It is not a de Polignac number, because 11521233 - 2¹⁷ = 11390161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11521273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1135 + ... + 4932.

Almost surely, 2^11521233 is an apocalyptic number.

It is an amenable number.

11521233 is a deficient number, since it is larger than the sum of its proper divisors (5202175).

11521233 is a wasteful number, since it uses less digits than its factorization.

11521233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6284 (or 6281 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 11521233 is about 3394.2941828899. The cubic root of 11521233 is about 225.8567042650.

Adding to 11521233 its reverse (33212511), we get a palindrome (44733744).

The spelling of 11521233 in words is "eleven million, five hundred twenty-one thousand, two hundred thirty-three".