210113305 has 32 divisors (see below), whose sum is σ = 271814400. Its totient is φ = 155457792.

The previous prime is 210113297. The next prime is 210113311. The reversal of 210113305 is 503311012.

It is a cyclic number.

It is not a de Polignac number, because 210113305 - 2³ = 210113297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1066467 + ... + 1066663.

It is an arithmetic number, because the mean of its divisors is an integer number (8494200).

Almost surely, 2^210113305 is an apocalyptic number.

It is an amenable number.

210113305 is a deficient number, since it is larger than the sum of its proper divisors (61701095).

210113305 is a wasteful number, since it uses less digits than its factorization.

210113305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 210113305 is about 14495.2856129157. The cubic root of 210113305 is about 594.4990770206.

Adding to 210113305 its reverse (503311012), we get a palindrome (713424317).

The spelling of 210113305 in words is "two hundred ten million, one hundred thirteen thousand, three hundred five".