12543334404 has 12 divisors (see below), whose sum is σ = 29267780304. Its totient is φ = 4181111464.

The previous prime is 12543334403. The next prime is 12543334477. The reversal of 12543334404 is 40443334521.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×12543334404³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12543334403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522638922 + ... + 522638945.

It is an arithmetic number, because the mean of its divisors is an integer number (2438981692).

Almost surely, 2^12543334404 is an apocalyptic number.

It is an amenable number.

12543334404 is an abundant number, since it is smaller than the sum of its proper divisors (16724445900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12543334404 is a wasteful number, since it uses less digits than its factorization.

12543334404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045277874 (or 1045277872 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 12543334404 its reverse (40443334521), we get a palindrome (52986668925).

The spelling of 12543334404 in words is "twelve billion, five hundred forty-three million, three hundred thirty-four thousand, four hundred four".