213012320213 has 16 divisors (see below), whose sum is σ = 266512252416. Its totient is φ = 165397094640.

The previous prime is 213012320207. The next prime is 213012320233. The reversal of 213012320213 is 312023210312.

It is a cyclic number.

It is not a de Polignac number, because 213012320213 - 2⁶ = 213012320149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012320233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4865831 + ... + 4909412.

It is an arithmetic number, because the mean of its divisors is an integer number (16657015776).

Almost surely, 2^213012320213 is an apocalyptic number.

It is an amenable number.

213012320213 is a deficient number, since it is larger than the sum of its proper divisors (53499932203).

213012320213 is a wasteful number, since it uses less digits than its factorization.

213012320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9775544.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213012320213 its reverse (312023210312), we get a palindrome (525035530525).

The spelling of 213012320213 in words is "two hundred thirteen billion, twelve million, three hundred twenty thousand, two hundred thirteen".