11433231 has 60 divisors (see below), whose sum is σ = 19915632. Its totient is φ = 6500736.

The previous prime is 11433229. The next prime is 11433241. The reversal of 11433231 is 13233411.

11433231 is a `hidden beast` number, since 1 + 1 + 433 + 231 = 666.

It is not a de Polignac number, because 11433231 - 2¹ = 11433229 is a prime.

It is a super-2 number, since 2×11433231² = 261437542198722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11433241) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 497086 + ... + 497108.

Almost surely, 2^11433231 is an apocalyptic number.

11433231 is a deficient number, since it is larger than the sum of its proper divisors (8482401).

11433231 is a wasteful number, since it uses less digits than its factorization.

11433231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 62 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 11433231 is about 3381.3061085918. The cubic root of 11433231 is about 225.2801842852.

Adding to 11433231 its reverse (13233411), we get a palindrome (24666642).

It can be divided in two parts, 11433 and 231, that added together give a square (11664 = 108²).

The spelling of 11433231 in words is "eleven million, four hundred thirty-three thousand, two hundred thirty-one".