13204403603 has 4 divisors (see below), whose sum is σ = 13204639488. Its totient is φ = 13204167720.

The previous prime is 13204403561. The next prime is 13204403621. The reversal of 13204403603 is 30630440231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30630440231 = 58603 ⋅522677.

It is a cyclic number.

It is not a de Polignac number, because 13204403603 - 2⁶ = 13204403539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13204463603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19118 + ... + 163628.

It is an arithmetic number, because the mean of its divisors is an integer number (3301159872).

Almost surely, 2^13204403603 is an apocalyptic number.

13204403603 is a deficient number, since it is larger than the sum of its proper divisors (235885).

13204403603 is an equidigital number, since it uses as much as digits as its factorization.

13204403603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235884.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 13204403603 its reverse (30630440231), we get a palindrome (43834843834).

The spelling of 13204403603 in words is "thirteen billion, two hundred four million, four hundred three thousand, six hundred three".