204204310403 has 4 divisors (see below), whose sum is σ = 216216328680. Its totient is φ = 192192292128.

The previous prime is 204204310363. The next prime is 204204310421. The reversal of 204204310403 is 304013402402.

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

It is a cyclic number.

It is not a de Polignac number, because 204204310403 - 2⁸ = 204204310147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204204210403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6006009113 + ... + 6006009146.

It is an arithmetic number, because the mean of its divisors is an integer number (54054082170).

Almost surely, 2^204204310403 is an apocalyptic number.

204204310403 is a deficient number, since it is larger than the sum of its proper divisors (12012018277).

204204310403 is a wasteful number, since it uses less digits than its factorization.

204204310403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12012018276.

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

Adding to 204204310403 its reverse (304013402402), we get a palindrome (508217712805).

The spelling of 204204310403 in words is "two hundred four billion, two hundred four million, three hundred ten thousand, four hundred three".