204241112321 has 2 divisors, whose sum is σ = 204241112322. Its totient is φ = 204241112320.

The previous prime is 204241112293. The next prime is 204241112323. The reversal of 204241112321 is 123211142402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161251236721 + 42989875600 = 401561^2 + 207340^2 .

It is a cyclic number.

It is not a de Polignac number, because 204241112321 - 2¹⁰ = 204241111297 is a prime.

Together with 204241112323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204241112323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102120556160 + 102120556161.

It is an arithmetic number, because the mean of its divisors is an integer number (102120556161).

Almost surely, 2^204241112321 is an apocalyptic number.

It is an amenable number.

204241112321 is a deficient number, since it is larger than the sum of its proper divisors (1).

204241112321 is an equidigital number, since it uses as much as digits as its factorization.

204241112321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 204241112321 its reverse (123211142402), we get a palindrome (327452254723).

The spelling of 204241112321 in words is "two hundred four billion, two hundred forty-one million, one hundred twelve thousand, three hundred twenty-one".