13044440012 has 12 divisors (see below), whose sum is σ = 22833330240. Its totient is φ = 6520631376.

The previous prime is 13044440009. The next prime is 13044440023. The reversal of 13044440012 is 21004444031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13044440012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378587 + ... + 411602.

It is an arithmetic number, because the mean of its divisors is an integer number (1902777520).

Almost surely, 2^13044440012 is an apocalyptic number.

It is an amenable number.

13044440012 is a deficient number, since it is larger than the sum of its proper divisors (9788890228).

13044440012 is a wasteful number, since it uses less digits than its factorization.

13044440012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794320 (or 794318 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 13044440012 its reverse (21004444031), we get a palindrome (34048884043).

The spelling of 13044440012 in words is "thirteen billion, forty-four million, four hundred forty thousand, twelve".