205304134201 has 16 divisors (see below), whose sum is σ = 206859760128. Its totient is φ = 203756083200.

The previous prime is 205304134181. The next prime is 205304134213. The reversal of 205304134201 is 102431403502.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205304134201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205304134241) 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, 120979785 + ... + 120981481.

It is an arithmetic number, because the mean of its divisors is an integer number (12928735008).

Almost surely, 2^205304134201 is an apocalyptic number.

It is an amenable number.

205304134201 is a deficient number, since it is larger than the sum of its proper divisors (1555625927).

205304134201 is a wasteful number, since it uses less digits than its factorization.

205304134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 205304134201 its reverse (102431403502), we get a palindrome (307735537703).

The spelling of 205304134201 in words is "two hundred five billion, three hundred four million, one hundred thirty-four thousand, two hundred one".