213321323 has 8 divisors (see below), whose sum is σ = 225325056. Its totient is φ = 201637800.

The previous prime is 213321313. The next prime is 213321349. The reversal of 213321323 is 323123312.

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 213321323 - 2⁴ = 213321307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213321295 and 213321304.

It is not an unprimeable number, because it can be changed into a prime (213321313) 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, 78683 + ... + 81348.

It is an arithmetic number, because the mean of its divisors is an integer number (28165632).

Almost surely, 2^213321323 is an apocalyptic number.

213321323 is a deficient number, since it is larger than the sum of its proper divisors (12003733).

213321323 is a wasteful number, since it uses less digits than its factorization.

213321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160105.

The product of its digits is 648, while the sum is 20.

The square root of 213321323 is about 14605.5237153619. The cubic root of 213321323 is about 597.5094195045.

Adding to 213321323 its reverse (323123312), we get a palindrome (536444635).

The spelling of 213321323 in words is "two hundred thirteen million, three hundred twenty-one thousand, three hundred twenty-three".