204303220402 has 4 divisors (see below), whose sum is σ = 306454830606. Its totient is φ = 102151610200.

The previous prime is 204303220321. The next prime is 204303220417. The reversal of 204303220402 is 204022303402.

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

It can be written as a sum of positive squares in only one way, i.e., 192511215121 + 11792005281 = 438761^2 + 108591^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51075805099 + ... + 51075805102.

Almost surely, 2^204303220402 is an apocalyptic number.

204303220402 is a deficient number, since it is larger than the sum of its proper divisors (102151610204).

204303220402 is a wasteful number, since it uses less digits than its factorization.

204303220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102151610203.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 204303220402 its reverse (204022303402), we get a palindrome (408325523804).

The spelling of 204303220402 in words is "two hundred four billion, three hundred three million, two hundred twenty thousand, four hundred two".