12043420444 has 24 divisors (see below), whose sum is σ = 23425800048. Its totient is φ = 5370992640.

The previous prime is 12043420439. The next prime is 12043420447. The reversal of 12043420444 is 44402434021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043420447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579877 + ... + 2584540.

It is an arithmetic number, because the mean of its divisors is an integer number (976075002).

Almost surely, 2^12043420444 is an apocalyptic number.

It is an amenable number.

12043420444 is a deficient number, since it is larger than the sum of its proper divisors (11382379604).

12043420444 is a wasteful number, since it uses less digits than its factorization.

12043420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164485 (or 5164483 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 12043420444 its reverse (44402434021), we get a palindrome (56445854465).

The spelling of 12043420444 in words is "twelve billion, forty-three million, four hundred twenty thousand, four hundred forty-four".