13503430443 has 8 divisors (see below), whose sum is σ = 18005765008. Its totient is φ = 9001691424.

The previous prime is 13503430441. The next prime is 13503430459. The reversal of 13503430443 is 34403430531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13503430443 - 2¹ = 13503430441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13503430443.

It is not an unprimeable number, because it can be changed into a prime (13503430441) 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, 92980 + ... + 188817.

It is an arithmetic number, because the mean of its divisors is an integer number (2250720626).

Almost surely, 2^13503430443 is an apocalyptic number.

13503430443 is a deficient number, since it is larger than the sum of its proper divisors (4502334565).

13503430443 is a wasteful number, since it uses less digits than its factorization.

13503430443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297773.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 13503430443 its reverse (34403430531), we get a palindrome (47906860974).

The spelling of 13503430443 in words is "thirteen billion, five hundred three million, four hundred thirty thousand, four hundred forty-three".