203342313 has 16 divisors (see below), whose sum is σ = 292033280. Its totient is φ = 125438544.

The previous prime is 203342311. The next prime is 203342317. The reversal of 203342313 is 313243302.

203342313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203342313 - 2¹ = 203342311 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 203342313.

It is not an unprimeable number, because it can be changed into a prime (203342311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39031 + ... + 43932.

It is an arithmetic number, because the mean of its divisors is an integer number (18252080).

Almost surely, 2^203342313 is an apocalyptic number.

It is an amenable number.

203342313 is a deficient number, since it is larger than the sum of its proper divisors (88690967).

203342313 is a wasteful number, since it uses less digits than its factorization.

203342313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83028.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 203342313 is about 14259.8146201134. The cubic root of 203342313 is about 588.0432282301.

Adding to 203342313 its reverse (313243302), we get a palindrome (516585615).

The spelling of 203342313 in words is "two hundred three million, three hundred forty-two thousand, three hundred thirteen".