203320343 has 2 divisors, whose sum is σ = 203320344. Its totient is φ = 203320342.

The previous prime is 203320333. The next prime is 203320361. The reversal of 203320343 is 343023302.

203320343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203320343 - 2²⁰ = 202271767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203320333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101660171 + 101660172.

It is an arithmetic number, because the mean of its divisors is an integer number (101660172).

Almost surely, 2^203320343 is an apocalyptic number.

203320343 is a deficient number, since it is larger than the sum of its proper divisors (1).

203320343 is an equidigital number, since it uses as much as digits as its factorization.

203320343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 203320343 is about 14259.0442526840. The cubic root of 203320343 is about 588.0220492063.

Adding to 203320343 its reverse (343023302), we get a palindrome (546343645).

The spelling of 203320343 in words is "two hundred three million, three hundred twenty thousand, three hundred forty-three".