203320313203 has 12 divisors (see below), whose sum is σ = 237123497520. Its totient is φ = 173826531312.

The previous prime is 203320313167. The next prime is 203320313221. The reversal of 203320313203 is 302313023302.

It is a de Polignac number, because none of the positive numbers 2^k-203320313203 is a prime.

It is a super-2 number, since 2×203320313203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203320313243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5314351 + ... + 5352472.

It is an arithmetic number, because the mean of its divisors is an integer number (19760291460).

Almost surely, 2^203320313203 is an apocalyptic number.

203320313203 is a deficient number, since it is larger than the sum of its proper divisors (33803184317).

203320313203 is a wasteful number, since it uses less digits than its factorization.

203320313203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667226 (or 10667219 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 203320313203 its reverse (302313023302), we get a palindrome (505633336505).

The spelling of 203320313203 in words is "two hundred three billion, three hundred twenty million, three hundred thirteen thousand, two hundred three".