12404243133 has 12 divisors (see below), whose sum is σ = 17920919068. Its totient is φ = 8267797440.

The previous prime is 12404243123. The next prime is 12404243141. The reversal of 12404243133 is 33134240421.

12404243133 is a `hidden beast` number, since 1 + 2 + 404 + 243 + 13 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9568361124 + 2835882009 = 97818^2 + 53253^2 .

It is not a de Polignac number, because 12404243133 - 2²⁶ = 12337134269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12404243097 and 12404243106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404243123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94408 + ... + 183633.

Almost surely, 2^12404243133 is an apocalyptic number.

It is an amenable number.

12404243133 is a deficient number, since it is larger than the sum of its proper divisors (5516675935).

12404243133 is a wasteful number, since it uses less digits than its factorization.

12404243133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283004 (or 283001 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12404243133 its reverse (33134240421), we get a palindrome (45538483554).

The spelling of 12404243133 in words is "twelve billion, four hundred four million, two hundred forty-three thousand, one hundred thirty-three".