11131233 has 4 divisors (see below), whose sum is σ = 14841648. Its totient is φ = 7420820.

The previous prime is 11131231. The next prime is 11131247. The reversal of 11131233 is 33213111.

11131233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11131233 - 2¹ = 11131231 is a prime.

It is a super-5 number, since 5×11131233⁵ (a number of 36 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (11131231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855203 + ... + 1855208.

It is an arithmetic number, because the mean of its divisors is an integer number (3710412).

Almost surely, 2^11131233 is an apocalyptic number.

It is an amenable number.

11131233 is a deficient number, since it is larger than the sum of its proper divisors (3710415).

11131233 is an equidigital number, since it uses as much as digits as its factorization.

11131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710414.

The product of its digits is 54, while the sum is 15.

The square root of 11131233 is about 3336.3502513975. The cubic root of 11131233 is about 223.2789380161.

Adding to 11131233 its reverse (33213111), we get a palindrome (44344344).

It can be divided in two parts, 1113 and 1233, that added together give a triangular number (2346 = T₆₈).

The spelling of 11131233 in words is "eleven million, one hundred thirty-one thousand, two hundred thirty-three".