213223212313 has 8 divisors (see below), whose sum is σ = 213749904200. Its totient is φ = 212696679168.

The previous prime is 213223212311. The next prime is 213223212329. The reversal of 213223212313 is 313212322312.

It can be written as a sum of positive squares in 4 ways, for example, as 12329215369 + 200893996944 = 111037^2 + 448212^2 .

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 213223212313 - 2¹ = 213223212311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213223212311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2920903 + ... + 2993011.

It is an arithmetic number, because the mean of its divisors is an integer number (26718738025).

Almost surely, 2^213223212313 is an apocalyptic number.

It is an amenable number.

213223212313 is a deficient number, since it is larger than the sum of its proper divisors (526691887).

213223212313 is an equidigital number, since it uses as much as digits as its factorization.

213223212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79371.

The product of its digits is 2592, while the sum is 25.

Adding to 213223212313 its reverse (313212322312), we get a palindrome (526435534625).

The spelling of 213223212313 in words is "two hundred thirteen billion, two hundred twenty-three million, two hundred twelve thousand, three hundred thirteen".