210320513 has 8 divisors (see below), whose sum is σ = 227640000. Its totient is φ = 193164048.

The previous prime is 210320507. The next prime is 210320521. The reversal of 210320513 is 315023012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210320513 - 2¹⁰ = 210319489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210320491 and 210320500.

It is not an unprimeable number, because it can be changed into a prime (210320573) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38063 + ... + 43236.

It is an arithmetic number, because the mean of its divisors is an integer number (28455000).

Almost surely, 2^210320513 is an apocalyptic number.

It is an amenable number.

210320513 is a deficient number, since it is larger than the sum of its proper divisors (17319487).

210320513 is a wasteful number, since it uses less digits than its factorization.

210320513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81511.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 210320513 is about 14502.4312789270. The cubic root of 210320513 is about 594.6944390627.

Adding to 210320513 its reverse (315023012), we get a palindrome (525343525).

The spelling of 210320513 in words is "two hundred ten million, three hundred twenty thousand, five hundred thirteen".