12043663721343 has 32 divisors (see below), whose sum is σ = 17975588825600. Its totient is φ = 7969291920000.

The previous prime is 12043663721317. The next prime is 12043663721357. The reversal of 12043663721343 is 34312736634021.

12043663721343 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 3 + 6 + 637 + 2 + 1 + 3 + 4 + 3 = 666.

12043663721343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12043663721343 - 2¹⁴ = 12043663704959 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 (12043663721393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3666648 + ... + 6126306.

It is an arithmetic number, because the mean of its divisors is an integer number (561737150800).

Almost surely, 2^{12043663721343} is an apocalyptic number.

12043663721343 is a deficient number, since it is larger than the sum of its proper divisors (5931925104257).

12043663721343 is a wasteful number, since it uses less digits than its factorization.

12043663721343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461020 (or 2461014 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 45.

The spelling of 12043663721343 in words is "twelve trillion, forty-three billion, six hundred sixty-three million, seven hundred twenty-one thousand, three hundred forty-three".