204021014121312 has 96 divisors (see below), whose sum is σ = 563998184507520. Its totient is φ = 64398441968640.

The previous prime is 204021014121283. The next prime is 204021014121319. The reversal of 204021014121312 is 213121410120402.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204021014121319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21368389 + ... + 29404932.

It is an arithmetic number, because the mean of its divisors is an integer number (5874981088620).

Almost surely, 2^{204021014121312} is an apocalyptic number.

It is an amenable number.

204021014121312 is an abundant number, since it is smaller than the sum of its proper divisors (359977170386208).

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

204021014121312 is a wasteful number, since it uses less digits than its factorization.

204021014121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50775556 (or 50775548 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 204021014121312 its reverse (213121410120402), we get a palindrome (417142424241714).

The spelling of 204021014121312 in words is "two hundred four trillion, twenty-one billion, fourteen million, one hundred twenty-one thousand, three hundred twelve".