204002421011441 has 4 divisors (see below), whose sum is σ = 219694914935412. Its totient is φ = 188309927087472.

The previous prime is 204002421011401. The next prime is 204002421011447. The reversal of 204002421011441 is 144110124200402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85745822089216 + 118256598922225 = 9259904^2 + 10874585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204002421011441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204002421011441.

It is not an unprimeable number, because it can be changed into a prime (204002421011447) 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, 7846246961966 + ... + 7846246961991.

It is an arithmetic number, because the mean of its divisors is an integer number (54923728733853).

Almost surely, 2^{204002421011441} is an apocalyptic number.

It is an amenable number.

204002421011441 is a deficient number, since it is larger than the sum of its proper divisors (15692493923971).

204002421011441 is a wasteful number, since it uses less digits than its factorization.

204002421011441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15692493923970.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 204002421011441 its reverse (144110124200402), we get a palindrome (348112545211843).

The spelling of 204002421011441 in words is "two hundred four trillion, two billion, four hundred twenty-one million, eleven thousand, four hundred forty-one".