203303300113 has 4 divisors (see below), whose sum is σ = 203360076468. Its totient is φ = 203246523760.

The previous prime is 203303300099. The next prime is 203303300147. The reversal of 203303300113 is 311003303302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87419566224 + 115883733889 = 295668^2 + 340417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203303300113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203303300153) 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, 28382806 + ... + 28389967.

It is an arithmetic number, because the mean of its divisors is an integer number (50840019117).

Almost surely, 2^203303300113 is an apocalyptic number.

It is an amenable number.

203303300113 is a deficient number, since it is larger than the sum of its proper divisors (56776355).

203303300113 is an equidigital number, since it uses as much as digits as its factorization.

203303300113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56776354.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 203303300113 its reverse (311003303302), we get a palindrome (514306603415).

The spelling of 203303300113 in words is "two hundred three billion, three hundred three million, three hundred thousand, one hundred thirteen".