203300113 has 4 divisors (see below), whose sum is σ = 203876388. Its totient is φ = 202723840.

The previous prime is 203300081. The next prime is 203300143. The reversal of 203300113 is 311003302.

203300113 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

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 121705024 + 81595089 = 11032^2 + 9033^2 .

It is a cyclic number.

It is not a de Polignac number, because 203300113 - 2⁵ = 203300081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203300093 and 203300102.

It is not an unprimeable number, because it can be changed into a prime (203300143) 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, 287608 + ... + 288313.

It is an arithmetic number, because the mean of its divisors is an integer number (50969097).

Almost surely, 2^203300113 is an apocalyptic number.

It is an amenable number.

203300113 is a deficient number, since it is larger than the sum of its proper divisors (576275).

203300113 is an equidigital number, since it uses as much as digits as its factorization.

203300113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576274.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 203300113 is about 14258.3348607052. The cubic root of 203300113 is about 588.0025461889.

Adding to 203300113 its reverse (311003302), we get a palindrome (514303415).

The spelling of 203300113 in words is "two hundred three million, three hundred thousand, one hundred thirteen".