13321443244 has 24 divisors (see below), whose sum is σ = 23586358320. Its totient is φ = 6582913536.

The previous prime is 13321443241. The next prime is 13321443271. The reversal of 13321443244 is 44234412331.

It is a super-2 number, since 2×13321443244² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13321443241) 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, 70852 + ... + 177940.

It is an arithmetic number, because the mean of its divisors is an integer number (982764930).

Almost surely, 2^13321443244 is an apocalyptic number.

It is an amenable number.

13321443244 is a deficient number, since it is larger than the sum of its proper divisors (10264915076).

13321443244 is a wasteful number, since it uses less digits than its factorization.

13321443244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107457 (or 107455 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

Adding to 13321443244 its reverse (44234412331), we get a palindrome (57555855575).

The spelling of 13321443244 in words is "thirteen billion, three hundred twenty-one million, four hundred forty-three thousand, two hundred forty-four".