204121243329 has 8 divisors (see below), whose sum is σ = 272176751040. Its totient is φ = 136073282256.

The previous prime is 204121243301. The next prime is 204121243349. The reversal of 204121243329 is 923342121402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204121243329 - 2¹¹ = 204121241281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204121243329.

It is not an unprimeable number, because it can be changed into a prime (204121243349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1823242 + ... + 1931955.

It is an arithmetic number, because the mean of its divisors is an integer number (34022093880).

Almost surely, 2^204121243329 is an apocalyptic number.

It is an amenable number.

204121243329 is a deficient number, since it is larger than the sum of its proper divisors (68055507711).

204121243329 is a wasteful number, since it uses less digits than its factorization.

204121243329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773319.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 204121243329 in words is "two hundred four billion, one hundred twenty-one million, two hundred forty-three thousand, three hundred twenty-nine".