203333430013 has 12 divisors (see below), whose sum is σ = 238827145440. Its totient is φ = 172593697752.

The previous prime is 203333429989. The next prime is 203333430019. The reversal of 203333430013 is 310034333302.

It is a de Polignac number, because none of the positive numbers 2^k-203333430013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203333430013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203333430019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20138943 + ... + 20149036.

It is an arithmetic number, because the mean of its divisors is an integer number (19902262120).

Almost surely, 2^203333430013 is an apocalyptic number.

It is an amenable number.

203333430013 is a deficient number, since it is larger than the sum of its proper divisors (35493715427).

203333430013 is a wasteful number, since it uses less digits than its factorization.

203333430013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40288096 (or 40288089 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 203333430013 its reverse (310034333302), we get a palindrome (513367763315).

The spelling of 203333430013 in words is "two hundred three billion, three hundred thirty-three million, four hundred thirty thousand, thirteen".