203321004242 has 16 divisors (see below), whose sum is σ = 308881503360. Its totient is φ = 100360832208.

The previous prime is 203321004209. The next prime is 203321004247. The reversal of 203321004242 is 242400123302.

It is not an unprimeable number, because it can be changed into a prime (203321004247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223333 + ... + 1379559.

It is an arithmetic number, because the mean of its divisors is an integer number (19305093960).

Almost surely, 2^203321004242 is an apocalyptic number.

203321004242 is a deficient number, since it is larger than the sum of its proper divisors (105560499118).

203321004242 is a wasteful number, since it uses less digits than its factorization.

203321004242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164545.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 203321004242 its reverse (242400123302), we get a palindrome (445721127544).

The spelling of 203321004242 in words is "two hundred three billion, three hundred twenty-one million, four thousand, two hundred forty-two".