213322443 has 16 divisors (see below), whose sum is σ = 317013120. Its totient is φ = 126804096.

The previous prime is 213322397. The next prime is 213322457. The reversal of 213322443 is 344223312.

It is not a de Polignac number, because 213322443 - 2⁹ = 213321931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213323443) 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, 109105 + ... + 111042.

It is an arithmetic number, because the mean of its divisors is an integer number (19813320).

Almost surely, 2^213322443 is an apocalyptic number.

213322443 is a deficient number, since it is larger than the sum of its proper divisors (103690677).

213322443 is a wasteful number, since it uses less digits than its factorization.

213322443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220186.

The product of its digits is 3456, while the sum is 24.

The square root of 213322443 is about 14605.5620569699. The cubic root of 213322443 is about 597.5104652030.

Adding to 213322443 its reverse (344223312), we get a palindrome (557545755).

The spelling of 213322443 in words is "two hundred thirteen million, three hundred twenty-two thousand, four hundred forty-three".