20243234203 has 4 divisors (see below), whose sum is σ = 20251266568. Its totient is φ = 20235201840.

The previous prime is 20243234189. The next prime is 20243234233. The reversal of 20243234203 is 30243234202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20243234203 - 2⁵ = 20243234171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20243234233) 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, 4012401 + ... + 4017442.

It is an arithmetic number, because the mean of its divisors is an integer number (5062816642).

Almost surely, 2^20243234203 is an apocalyptic number.

20243234203 is a deficient number, since it is larger than the sum of its proper divisors (8032365).

20243234203 is an equidigital number, since it uses as much as digits as its factorization.

20243234203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032364.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20243234203 its reverse (30243234202), we get a palindrome (50486468405).

Subtracting 20243234203 from its reverse (30243234202), we obtain a palindrome (9999999999).

The spelling of 20243234203 in words is "twenty billion, two hundred forty-three million, two hundred thirty-four thousand, two hundred three".