204312434345012 has 12 divisors (see below), whose sum is σ = 408624868690080. Its totient is φ = 87562471862136.

The previous prime is 204312434345009. The next prime is 204312434345017. The reversal of 204312434345012 is 210543434213402.

It is a happy number.

204312434345012 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204312434345017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3648436327562 + ... + 3648436327617.

It is an arithmetic number, because the mean of its divisors is an integer number (34052072390840).

Almost surely, 2^{204312434345012} is an apocalyptic number.

It is an amenable number.

204312434345012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

204312434345012 is a wasteful number, since it uses less digits than its factorization.

204312434345012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296872655190 (or 7296872655188 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

Adding to 204312434345012 its reverse (210543434213402), we get a palindrome (414855868558414).

The spelling of 204312434345012 in words is "two hundred four trillion, three hundred twelve billion, four hundred thirty-four million, three hundred forty-five thousand, twelve".