204121243301 has 2 divisors, whose sum is σ = 204121243302. Its totient is φ = 204121243300.

The previous prime is 204121243279. The next prime is 204121243349. The reversal of 204121243301 is 103342121402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109164820801 + 94956422500 = 330401^2 + 308150^2 .

It is a cyclic number.

It is not a de Polignac number, because 204121243301 - 2¹⁰ = 204121242277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204121213301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102060621650 + 102060621651.

It is an arithmetic number, because the mean of its divisors is an integer number (102060621651).

Almost surely, 2^204121243301 is an apocalyptic number.

It is an amenable number.

204121243301 is a deficient number, since it is larger than the sum of its proper divisors (1).

204121243301 is an equidigital number, since it uses as much as digits as its factorization.

204121243301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 204121243301 its reverse (103342121402), we get a palindrome (307463364703).

The spelling of 204121243301 in words is "two hundred four billion, one hundred twenty-one million, two hundred forty-three thousand, three hundred one".