205244431105 has 16 divisors (see below), whose sum is σ = 286092474624. Its totient is φ = 138431839680.

The previous prime is 205244431103. The next prime is 205244431121. The reversal of 205244431105 is 501134442502.

205244431105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205244431105 - 2¹ = 205244431103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205244431103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48064477 + ... + 48068746.

It is an arithmetic number, because the mean of its divisors is an integer number (17880779664).

Almost surely, 2^205244431105 is an apocalyptic number.

It is an amenable number.

205244431105 is a deficient number, since it is larger than the sum of its proper divisors (80848043519).

205244431105 is an equidigital number, since it uses as much as digits as its factorization.

205244431105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96133296.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 205244431105 its reverse (501134442502), we get a palindrome (706378873607).

The spelling of 205244431105 in words is "two hundred five billion, two hundred forty-four million, four hundred thirty-one thousand, one hundred five".