243221241003 has 16 divisors (see below), whose sum is σ = 351465228576. Its totient is φ = 148721264640.

The previous prime is 243221241001. The next prime is 243221241089. The reversal of 243221241003 is 300142122342.

It is a happy number.

243221241003 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 243221241003 - 2¹ = 243221241001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243221241001) 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 15 ways as a sum of consecutive naturals, for example, 19855158 + ... + 19867403.

It is an arithmetic number, because the mean of its divisors is an integer number (21966576786).

Almost surely, 2^243221241003 is an apocalyptic number.

243221241003 is a deficient number, since it is larger than the sum of its proper divisors (108243987573).

243221241003 is a wasteful number, since it uses less digits than its factorization.

243221241003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39722734.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 243221241003 its reverse (300142122342), we get a palindrome (543363363345).

The spelling of 243221241003 in words is "two hundred forty-three billion, two hundred twenty-one million, two hundred forty-one thousand, three".