203242434203 has 4 divisors (see below), whose sum is σ = 203739359880. Its totient is φ = 202745508528.

The previous prime is 203242434169. The next prime is 203242434209. The reversal of 203242434203 is 302434242302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302434242302 = 2 ⋅151217121151.

It is a cyclic number.

It is not a de Polignac number, because 203242434203 - 2⁶ = 203242434139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203242434209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248462225 + ... + 248463042.

It is an arithmetic number, because the mean of its divisors is an integer number (50934839970).

Almost surely, 2^203242434203 is an apocalyptic number.

203242434203 is a deficient number, since it is larger than the sum of its proper divisors (496925677).

203242434203 is an equidigital number, since it uses as much as digits as its factorization.

203242434203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496925676.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 203242434203 its reverse (302434242302), we get a palindrome (505676676505).

The spelling of 203242434203 in words is "two hundred three billion, two hundred forty-two million, four hundred thirty-four thousand, two hundred three".