204040320041 has 4 divisors (see below), whose sum is σ = 204041820612. Its totient is φ = 204038819472.

The previous prime is 204040320023. The next prime is 204040320097. The reversal of 204040320041 is 140023040402.

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 139932105625 + 64108214416 = 374075^2 + 253196^2 .

It is a cyclic number.

It is not a de Polignac number, because 204040320041 - 2¹⁰ = 204040319017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204040319995 and 204040320022.

It is not an unprimeable number, because it can be changed into a prime (204040320241) 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, 523466 + ... + 825891.

It is an arithmetic number, because the mean of its divisors is an integer number (51010455153).

Almost surely, 2^204040320041 is an apocalyptic number.

It is an amenable number.

204040320041 is a deficient number, since it is larger than the sum of its proper divisors (1500571).

204040320041 is a wasteful number, since it uses less digits than its factorization.

204040320041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500570.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 204040320041 its reverse (140023040402), we get a palindrome (344063360443).

The spelling of 204040320041 in words is "two hundred four billion, forty million, three hundred twenty thousand, forty-one".