204243202102 has 16 divisors (see below), whose sum is σ = 335571996960. Its totient is φ = 92800156288.

The previous prime is 204243202099. The next prime is 204243202127. The reversal of 204243202102 is 201202342402.

It is a congruent 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 in 7 ways as a sum of consecutive naturals, for example, 103570618 + ... + 103572589.

It is an arithmetic number, because the mean of its divisors is an integer number (20973249810).

Almost surely, 2^204243202102 is an apocalyptic number.

204243202102 is a deficient number, since it is larger than the sum of its proper divisors (131328794858).

204243202102 is a wasteful number, since it uses less digits than its factorization.

204243202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207143255.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 204243202102 its reverse (201202342402), we get a palindrome (405445544504).

The spelling of 204243202102 in words is "two hundred four billion, two hundred forty-three million, two hundred two thousand, one hundred two".