205111306141 has 16 divisors (see below), whose sum is σ = 234867044224. Its totient is φ = 175469281344.

The previous prime is 205111306097. The next prime is 205111306151. The reversal of 205111306141 is 141603111502.

It is not a de Polignac number, because 205111306141 - 2¹⁷ = 205111175069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205111306151) 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, 21265666 + ... + 21275308.

It is an arithmetic number, because the mean of its divisors is an integer number (14679190264).

Almost surely, 2^205111306141 is an apocalyptic number.

It is an amenable number.

205111306141 is a deficient number, since it is larger than the sum of its proper divisors (29755738083).

205111306141 is an equidigital number, since it uses as much as digits as its factorization.

205111306141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15220.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 205111306141 its reverse (141603111502), we get a palindrome (346714417643).

The spelling of 205111306141 in words is "two hundred five billion, one hundred eleven million, three hundred six thousand, one hundred forty-one".