12331133 has 4 divisors (see below), whose sum is σ = 12980160. Its totient is φ = 11682108.

The previous prime is 12331127. The next prime is 12331141. The reversal of 12331133 is 33113321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33113321 = 281 ⋅117841.

It is a cyclic number.

It is not a de Polignac number, because 12331133 - 2¹⁶ = 12265597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324485 + ... + 324522.

It is an arithmetic number, because the mean of its divisors is an integer number (3245040).

Almost surely, 2^12331133 is an apocalyptic number.

It is an amenable number.

12331133 is a deficient number, since it is larger than the sum of its proper divisors (649027).

12331133 is an equidigital number, since it uses as much as digits as its factorization.

12331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649026.

The product of its digits is 162, while the sum is 17.

The square root of 12331133 is about 3511.5713007143. The cubic root of 12331133 is about 231.0296183358.

Adding to 12331133 its reverse (33113321), we get a palindrome (45444454).

The spelling of 12331133 in words is "twelve million, three hundred thirty-one thousand, one hundred thirty-three".