12133212311309 has 4 divisors (see below), whose sum is σ = 12133219285500. Its totient is φ = 12133205337120.

The previous prime is 12133212311299. The next prime is 12133212311323. The reversal of 12133212311309 is 90311321233121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6317445983209 + 5815766328100 = 2513453^2 + 2411590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12133212311309 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 (12133212311329) 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, 1498817 + ... + 5149065.

It is an arithmetic number, because the mean of its divisors is an integer number (3033304821375).

Almost surely, 2^{12133212311309} is an apocalyptic number.

It is an amenable number.

12133212311309 is a deficient number, since it is larger than the sum of its proper divisors (6974191).

12133212311309 is an equidigital number, since it uses as much as digits as its factorization.

12133212311309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6974190.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 12133212311309 in words is "twelve trillion, one hundred thirty-three billion, two hundred twelve million, three hundred eleven thousand, three hundred nine".