210320013 has 16 divisors (see below), whose sum is σ = 283271040. Its totient is φ = 138799104.

The previous prime is 210319979. The next prime is 210320023. The reversal of 210320013 is 310023012.

It is a happy number.

It is not a de Polignac number, because 210320013 - 2⁸ = 210319757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210320023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134128 + ... + 135686.

It is an arithmetic number, because the mean of its divisors is an integer number (17704440).

Almost surely, 2^210320013 is an apocalyptic number.

It is an amenable number.

210320013 is a deficient number, since it is larger than the sum of its proper divisors (72951027).

210320013 is a wasteful number, since it uses less digits than its factorization.

210320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 210320013 is about 14502.4140404279. The cubic root of 210320013 is about 594.6939678019.

Adding to 210320013 its reverse (310023012), we get a palindrome (520343025).

The spelling of 210320013 in words is "two hundred ten million, three hundred twenty thousand, thirteen".