210313043505 has 12 divisors (see below), whose sum is σ = 364542608820. Its totient is φ = 112166956512.

The previous prime is 210313043491. The next prime is 210313043513. The reversal of 210313043505 is 505340313012.

210313043505 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 1 + 304 + 350 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87050961936 + 123262081569 = 295044^2 + 351087^2 .

It is not a de Polignac number, because 210313043505 - 2⁴ = 210313043489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2336811550 + ... + 2336811639.

It is an arithmetic number, because the mean of its divisors is an integer number (30378550735).

Almost surely, 2^210313043505 is an apocalyptic number.

It is an amenable number.

210313043505 is a deficient number, since it is larger than the sum of its proper divisors (154229565315).

210313043505 is a wasteful number, since it uses less digits than its factorization.

210313043505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673623200 (or 4673623197 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 210313043505 its reverse (505340313012), we get a palindrome (715653356517).

The spelling of 210313043505 in words is "two hundred ten billion, three hundred thirteen million, forty-three thousand, five hundred five".