204431310404430 has 32 divisors (see below), whose sum is σ = 490659859800864. Its totient is φ = 54512270015616.

The previous prime is 204431310404401. The next prime is 204431310404483. The reversal of 204431310404430 is 34404013134402.

It is a junction number, because it is equal to n+sod(n) for n = 204431310404391 and 204431310404400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171025249 + ... + 172216428.

It is an arithmetic number, because the mean of its divisors is an integer number (15333120618777).

Almost surely, 2^{204431310404430} is an apocalyptic number.

204431310404430 is an abundant number, since it is smaller than the sum of its proper divisors (286228549396434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204431310404430 is a wasteful number, since it uses less digits than its factorization.

204431310404430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343261540.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 204431310404430 its reverse (34404013134402), we get a palindrome (238835323538832).

The spelling of 204431310404430 in words is "two hundred four trillion, four hundred thirty-one billion, three hundred ten million, four hundred four thousand, four hundred thirty".