12443344012 has 48 divisors (see below), whose sum is σ = 24717117600. Its totient is φ = 5429365760.

The previous prime is 12443343947. The next prime is 12443344019. The reversal of 12443344012 is 21044334421.

It is a super-2 number, since 2×12443344012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12443344019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192564 + ... + 248932.

It is an arithmetic number, because the mean of its divisors is an integer number (514939950).

Almost surely, 2^12443344012 is an apocalyptic number.

It is an amenable number.

12443344012 is a deficient number, since it is larger than the sum of its proper divisors (12273773588).

12443344012 is a wasteful number, since it uses less digits than its factorization.

12443344012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56586 (or 56584 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12443344012 its reverse (21044334421), we get a palindrome (33487678433).

The spelling of 12443344012 in words is "twelve billion, four hundred forty-three million, three hundred forty-four thousand, twelve".