13213440203 has 4 divisors (see below), whose sum is σ = 13279839600. Its totient is φ = 13147040808.

The previous prime is 13213440173. The next prime is 13213440221. The reversal of 13213440203 is 30204431231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13213440203 - 2¹⁰ = 13213439179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213440293) 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, 33199400 + ... + 33199797.

It is an arithmetic number, because the mean of its divisors is an integer number (3319959900).

Almost surely, 2^13213440203 is an apocalyptic number.

13213440203 is a deficient number, since it is larger than the sum of its proper divisors (66399397).

13213440203 is an equidigital number, since it uses as much as digits as its factorization.

13213440203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66399396.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13213440203 its reverse (30204431231), we get a palindrome (43417871434).

The spelling of 13213440203 in words is "thirteen billion, two hundred thirteen million, four hundred forty thousand, two hundred three".