204300421441 has 4 divisors (see below), whose sum is σ = 204301552084. Its totient is φ = 204299290800.

The previous prime is 204300421397. The next prime is 204300421471. The reversal of 204300421441 is 144124003402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 144124003402 = 2 ⋅72062001701.

It can be written as a sum of positive squares in 2 ways, for example, as 68541334416 + 135759087025 = 261804^2 + 368455^2 .

It is a cyclic number.

It is not a de Polignac number, because 204300421441 - 2²⁵ = 204266867009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204300421471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226650 + ... + 678211.

It is an arithmetic number, because the mean of its divisors is an integer number (51075388021).

Almost surely, 2^204300421441 is an apocalyptic number.

It is an amenable number.

204300421441 is a deficient number, since it is larger than the sum of its proper divisors (1130643).

204300421441 is an equidigital number, since it uses as much as digits as its factorization.

204300421441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130642.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 204300421441 its reverse (144124003402), we get a palindrome (348424424843).

The spelling of 204300421441 in words is "two hundred four billion, three hundred million, four hundred twenty-one thousand, four hundred forty-one".