205243104041 has 16 divisors (see below), whose sum is σ = 212451579648. Its totient is φ = 198182088000.

The previous prime is 205243104023. The next prime is 205243104113. The reversal of 205243104041 is 140401342502.

It is a cyclic number.

It is not a de Polignac number, because 205243104041 - 2²⁶ = 205175995177 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 205243104041.

It is not an unprimeable number, because it can be changed into a prime (205243109041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779156 + ... + 1008746.

It is an arithmetic number, because the mean of its divisors is an integer number (13278223728).

Almost surely, 2^205243104041 is an apocalyptic number.

It is an amenable number.

205243104041 is a deficient number, since it is larger than the sum of its proper divisors (7208475607).

205243104041 is a wasteful number, since it uses less digits than its factorization.

205243104041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229912.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 205243104041 its reverse (140401342502), we get a palindrome (345644446543).

The spelling of 205243104041 in words is "two hundred five billion, two hundred forty-three million, one hundred four thousand, forty-one".