213351223 has 4 divisors (see below), whose sum is σ = 213561208. Its totient is φ = 213141240.

The previous prime is 213351211. The next prime is 213351227. The reversal of 213351223 is 322153312.

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 213351223 - 2⁵ = 213351191 is a prime.

It is a super-3 number, since 3×213351223³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213351194 and 213351203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213351227) 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, 103461 + ... + 105502.

It is an arithmetic number, because the mean of its divisors is an integer number (53390302).

Almost surely, 2^213351223 is an apocalyptic number.

213351223 is a deficient number, since it is larger than the sum of its proper divisors (209985).

213351223 is a wasteful number, since it uses less digits than its factorization.

213351223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209984.

The product of its digits is 1080, while the sum is 22.

The square root of 213351223 is about 14606.5472648398. The cubic root of 213351223 is about 597.5373346652.

The spelling of 213351223 in words is "two hundred thirteen million, three hundred fifty-one thousand, two hundred twenty-three".