204121243295 has 48 divisors (see below), whose sum is σ = 260373076992. Its totient is φ = 153328032000.

The previous prime is 204121243279. The next prime is 204121243301. The reversal of 204121243295 is 592342121402.

It is not a de Polignac number, because 204121243295 - 2⁴ = 204121243279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153820922 + ... + 153822248.

It is an arithmetic number, because the mean of its divisors is an integer number (5424439104).

Almost surely, 2^204121243295 is an apocalyptic number.

204121243295 is a deficient number, since it is larger than the sum of its proper divisors (56251833697).

204121243295 is a wasteful number, since it uses less digits than its factorization.

204121243295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752 (or 1679 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 204121243295 its reverse (592342121402), we get a palindrome (796463364697).

The spelling of 204121243295 in words is "two hundred four billion, one hundred twenty-one million, two hundred forty-three thousand, two hundred ninety-five".