204024021320021 has 8 divisors (see below), whose sum is σ = 233174189814720. Its totient is φ = 174874822759008.

The previous prime is 204024021319981. The next prime is 204024021320039. The reversal of 204024021320021 is 120023120420402.

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

It is a cyclic number.

It is not a de Polignac number, because 204024021320021 - 2¹⁸ = 204024021057877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204024021520021) 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, 242032616 + ... + 242874113.

It is an arithmetic number, because the mean of its divisors is an integer number (29146773726840).

Almost surely, 2^{204024021320021} is an apocalyptic number.

It is an amenable number.

204024021320021 is a deficient number, since it is larger than the sum of its proper divisors (29150168494699).

204024021320021 is an equidigital number, since it uses as much as digits as its factorization.

204024021320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484966843.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 204024021320021 its reverse (120023120420402), we get a palindrome (324047141740423).

The spelling of 204024021320021 in words is "two hundred four trillion, twenty-four billion, twenty-one million, three hundred twenty thousand, twenty-one".