13530344443 has 32 divisors (see below), whose sum is σ = 17246545920. Its totient is φ = 10307650560.

The previous prime is 13530344437. The next prime is 13530344447. The reversal of 13530344443 is 34444303531.

It is a cyclic number.

It is not a de Polignac number, because 13530344443 - 2²⁹ = 12993473531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13530344399 and 13530344408.

It is not an unprimeable number, because it can be changed into a prime (13530344447) 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, 5184723 + ... + 5187331.

It is an arithmetic number, because the mean of its divisors is an integer number (538954560).

Almost surely, 2^13530344443 is an apocalyptic number.

13530344443 is a deficient number, since it is larger than the sum of its proper divisors (3716201477).

13530344443 is a wasteful number, since it uses less digits than its factorization.

13530344443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 13530344443 its reverse (34444303531), we get a palindrome (47974647974).

The spelling of 13530344443 in words is "thirteen billion, five hundred thirty million, three hundred forty-four thousand, four hundred forty-three".