213211213223 has 4 divisors (see below), whose sum is σ = 216131914848. Its totient is φ = 210290511600.

The previous prime is 213211213217. The next prime is 213211213231. The reversal of 213211213223 is 322312112312.

213211213223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213211213223 - 2¹⁴ = 213211196839 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 (213211213253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460350703 + ... + 1460350848.

It is an arithmetic number, because the mean of its divisors is an integer number (54032978712).

Almost surely, 2^213211213223 is an apocalyptic number.

213211213223 is a deficient number, since it is larger than the sum of its proper divisors (2920701625).

213211213223 is an equidigital number, since it uses as much as digits as its factorization.

213211213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920701624.

The product of its digits is 864, while the sum is 23.

Adding to 213211213223 its reverse (322312112312), we get a palindrome (535523325535).

The spelling of 213211213223 in words is "two hundred thirteen billion, two hundred eleven million, two hundred thirteen thousand, two hundred twenty-three".