210103550505 has 12 divisors (see below), whose sum is σ = 364179487620. Its totient is φ = 112055226912.

The previous prime is 210103550491. The next prime is 210103550509. The reversal of 210103550505 is 505055301012.

210103550505 is a `hidden beast` number, since 2 + 1 + 0 + 103 + 5 + 50 + 505 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 96462421056 + 113641129449 = 310584^2 + 337107^2 .

It is not a de Polignac number, because 210103550505 - 2⁶ = 210103550441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210103550509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2334483850 + ... + 2334483939.

It is an arithmetic number, because the mean of its divisors is an integer number (30348290635).

Almost surely, 2^210103550505 is an apocalyptic number.

It is an amenable number.

210103550505 is a deficient number, since it is larger than the sum of its proper divisors (154075937115).

210103550505 is a wasteful number, since it uses less digits than its factorization.

210103550505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668967800 (or 4668967797 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

Adding to 210103550505 its reverse (505055301012), we get a palindrome (715158851517).

The spelling of 210103550505 in words is "two hundred ten billion, one hundred three million, five hundred fifty thousand, five hundred five".