13203123203 has 4 divisors (see below), whose sum is σ = 13217490960. Its totient is φ = 13188755448.

The previous prime is 13203123121. The next prime is 13203123209. The reversal of 13203123203 is 30232130231.

13203123203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13203123203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13203123209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7182500 + ... + 7184337.

It is an arithmetic number, because the mean of its divisors is an integer number (3304372740).

Almost surely, 2^13203123203 is an apocalyptic number.

13203123203 is a deficient number, since it is larger than the sum of its proper divisors (14367757).

13203123203 is an equidigital number, since it uses as much as digits as its factorization.

13203123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14367756.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13203123203 its reverse (30232130231), we get a palindrome (43435253434).

The spelling of 13203123203 in words is "thirteen billion, two hundred three million, one hundred twenty-three thousand, two hundred three".