203343201 has 12 divisors (see below), whose sum is σ = 293859540. Its totient is φ = 135496800.

The previous prime is 203343181. The next prime is 203343223. The reversal of 203343201 is 102343302.

It can be written as a sum of positive squares in 2 ways, for example, as 180875601 + 22467600 = 13449^2 + 4740^2 .

It is a de Polignac number, because none of the positive numbers 2^k-203343201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203343241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21051 + ... + 29151.

It is an arithmetic number, because the mean of its divisors is an integer number (24488295).

Almost surely, 2^203343201 is an apocalyptic number.

It is an amenable number.

203343201 is a deficient number, since it is larger than the sum of its proper divisors (90516339).

203343201 is a wasteful number, since it uses less digits than its factorization.

203343201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10896 (or 10893 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 203343201 is about 14259.8457565291. The cubic root of 203343201 is about 588.0440842278.

Adding to 203343201 its reverse (102343302), we get a palindrome (305686503).

The spelling of 203343201 in words is "two hundred three million, three hundred forty-three thousand, two hundred one".