12443000203 has 4 divisors (see below), whose sum is σ = 12533825160. Its totient is φ = 12352175248.

The previous prime is 12443000197. The next prime is 12443000209. The reversal of 12443000203 is 30200034421.

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

It is an interprime number because it is at equal distance from previous prime (12443000197) and next prime (12443000209).

It is a cyclic number.

It is not a de Polignac number, because 12443000203 - 2⁹ = 12442999691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443000209) 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, 45412273 + ... + 45412546.

It is an arithmetic number, because the mean of its divisors is an integer number (3133456290).

Almost surely, 2^12443000203 is an apocalyptic number.

12443000203 is a deficient number, since it is larger than the sum of its proper divisors (90824957).

12443000203 is an equidigital number, since it uses as much as digits as its factorization.

12443000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90824956.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12443000203 its reverse (30200034421), we get a palindrome (42643034624).

The spelling of 12443000203 in words is "twelve billion, four hundred forty-three million, two hundred three", and thus it is an aban number.