13243403430444 has 96 divisors (see below), whose sum is σ = 33928676280576. Its totient is φ = 3987182234880.

The previous prime is 13243403430443. The next prime is 13243403430449. The reversal of 13243403430444 is 44403430434231.

It is not an unprimeable number, because it can be changed into a prime (13243403430443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247065454 + ... + 247119050.

It is an arithmetic number, because the mean of its divisors is an integer number (353423711256).

Almost surely, 2^{13243403430444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13243403430444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16964338140288).

13243403430444 is an abundant number, since it is smaller than the sum of its proper divisors (20685272850132).

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

13243403430444 is a wasteful number, since it uses less digits than its factorization.

13243403430444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65695 (or 65693 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 39.

Adding to 13243403430444 its reverse (44403430434231), we get a palindrome (57646833864675).

The spelling of 13243403430444 in words is "thirteen trillion, two hundred forty-three billion, four hundred three million, four hundred thirty thousand, four hundred forty-four".