12031302133 has 4 divisors (see below), whose sum is σ = 12037269100. Its totient is φ = 12025335168.

The previous prime is 12031302119. The next prime is 12031302193. The reversal of 12031302133 is 33120313021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8930817009 + 3100485124 = 94503^2 + 55682^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031302133 - 2²⁵ = 11997747701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12031302133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031302193) 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, 2980458 + ... + 2984491.

It is an arithmetic number, because the mean of its divisors is an integer number (3009317275).

Almost surely, 2^12031302133 is an apocalyptic number.

It is an amenable number.

12031302133 is a deficient number, since it is larger than the sum of its proper divisors (5966967).

12031302133 is an equidigital number, since it uses as much as digits as its factorization.

12031302133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966966.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12031302133 its reverse (33120313021), we get a palindrome (45151615154).

The spelling of 12031302133 in words is "twelve billion, thirty-one million, three hundred two thousand, one hundred thirty-three".