203343230403 has 12 divisors (see below), whose sum is σ = 295519952520. Its totient is φ = 134730482976.

The previous prime is 203343230317. The next prime is 203343230423. The reversal of 203343230403 is 304032343302.

203343230403 is a `hidden beast` number, since 2 + 0 + 334 + 323 + 0 + 4 + 0 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-203343230403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203343230423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69304338 + ... + 69307271.

It is an arithmetic number, because the mean of its divisors is an integer number (24626662710).

Almost surely, 2^203343230403 is an apocalyptic number.

203343230403 is a deficient number, since it is larger than the sum of its proper divisors (92176722117).

203343230403 is a wasteful number, since it uses less digits than its factorization.

203343230403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138611778 (or 138611775 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 27.

Adding to 203343230403 its reverse (304032343302), we get a palindrome (507375573705).

The spelling of 203343230403 in words is "two hundred three billion, three hundred forty-three million, two hundred thirty thousand, four hundred three".