13231203203 has 4 divisors (see below), whose sum is σ = 13232486928. Its totient is φ = 13229919480.

The previous prime is 13231203199. The next prime is 13231203211. The reversal of 13231203203 is 30230213231.

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 13231203203 - 2² = 13231203199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231203263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626276 + ... + 647057.

It is an arithmetic number, because the mean of its divisors is an integer number (3308121732).

Almost surely, 2^13231203203 is an apocalyptic number.

13231203203 is a deficient number, since it is larger than the sum of its proper divisors (1283725).

13231203203 is a wasteful number, since it uses less digits than its factorization.

13231203203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283724.

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

Adding to 13231203203 its reverse (30230213231), we get a palindrome (43461416434).

The spelling of 13231203203 in words is "thirteen billion, two hundred thirty-one million, two hundred three thousand, two hundred three".