1323213 has 16 divisors (see below), whose sum is σ = 1867776. Its totient is φ = 831600.
The previous prime is 1323199. The next prime is 1323221. The reversal of 1323213 is 3123231.
It is not a de Polignac number, because 1323213 - 24 = 1323197 is a prime.
1323213 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 1323192 and 1323201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1323233) 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, 8688 + ... + 8838.
It is an arithmetic number, because the mean of its divisors is an integer number (116736).
21323213 is an apocalyptic number.
It is an amenable number.
1323213 is a deficient number, since it is larger than the sum of its proper divisors (544563).
1323213 is a wasteful number, since it uses less digits than its factorization.
1323213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 304.
The product of its digits is 108, while the sum is 15.
The square root of 1323213 is about 1150.3099582287. The cubic root of 1323213 is about 109.7850623838.
Adding to 1323213 its reverse (3123231), we get a palindrome (4446444).
The spelling of 1323213 in words is "one million, three hundred twenty-three thousand, two hundred thirteen".
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