12133033243 has 4 divisors (see below), whose sum is σ = 12771613960. Its totient is φ = 11494452528.

The previous prime is 12133033219. The next prime is 12133033259. The reversal of 12133033243 is 34233033121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12133033243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12133033643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319290330 + ... + 319290367.

It is an arithmetic number, because the mean of its divisors is an integer number (3192903490).

Almost surely, 2^12133033243 is an apocalyptic number.

12133033243 is a deficient number, since it is larger than the sum of its proper divisors (638580717).

12133033243 is an equidigital number, since it uses as much as digits as its factorization.

12133033243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638580716.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 12133033243 its reverse (34233033121), we get a palindrome (46366066364).

The spelling of 12133033243 in words is "twelve billion, one hundred thirty-three million, thirty-three thousand, two hundred forty-three".