203230430403 has 64 divisors (see below), whose sum is σ = 364656230400. Its totient is φ = 97230533760.

The previous prime is 203230430393. The next prime is 203230430441. The reversal of 203230430403 is 304034032302.

203230430403 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 203230430403 - 2⁸ = 203230430147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203230430443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1241238 + ... + 1395396.

It is an arithmetic number, because the mean of its divisors is an integer number (5697753600).

Almost surely, 2^203230430403 is an apocalyptic number.

203230430403 is a deficient number, since it is larger than the sum of its proper divisors (161425799997).

203230430403 is a wasteful number, since it uses less digits than its factorization.

203230430403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154632.

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 203230430403 its reverse (304034032302), we get a palindrome (507264462705).

The spelling of 203230430403 in words is "two hundred three billion, two hundred thirty million, four hundred thirty thousand, four hundred three".