243480203 has 2 divisors, whose sum is σ = 243480204. Its totient is φ = 243480202.

The previous prime is 243480187. The next prime is 243480227. The reversal of 243480203 is 302084342.

243480203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243480203 - 2⁴ = 243480187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (243480283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121740101 + 121740102.

It is an arithmetic number, because the mean of its divisors is an integer number (121740102).

Almost surely, 2^243480203 is an apocalyptic number.

243480203 is a deficient number, since it is larger than the sum of its proper divisors (1).

243480203 is an equidigital number, since it uses as much as digits as its factorization.

243480203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 243480203 is about 15603.8521846370. The cubic root of 243480203 is about 624.4359309683.

The spelling of 243480203 in words is "two hundred forty-three million, four hundred eighty thousand, two hundred three".