1323213313 has 8 divisors (see below), whose sum is σ = 1330449120. Its totient is φ = 1315997760.

The previous prime is 1323213301. The next prime is 1323213319. The reversal of 1323213313 is 3133123231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323213313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323213319) 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, 136518 + ... + 145888.

It is an arithmetic number, because the mean of its divisors is an integer number (166306140).

Almost surely, 2^1323213313 is an apocalyptic number.

It is an amenable number.

1323213313 is a deficient number, since it is larger than the sum of its proper divisors (7235807).

1323213313 is an equidigital number, since it uses as much as digits as its factorization.

1323213313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10127.

The product of its digits is 972, while the sum is 22.

The square root of 1323213313 is about 36375.9991340444. Note that the first 3 decimals coincide. The cubic root of 1323213313 is about 1097.8507104015.

Adding to 1323213313 its reverse (3133123231), we get a palindrome (4456336544).

The spelling of 1323213313 in words is "one billion, three hundred twenty-three million, two hundred thirteen thousand, three hundred thirteen".