1323231223 has 8 divisors (see below), whose sum is σ = 1338897168. Its totient is φ = 1307606784.

The previous prime is 1323231181. The next prime is 1323231233. The reversal of 1323231223 is 3221323231.

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-1323231223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323231194 and 1323231203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323231233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56265 + ... + 76237.

It is an arithmetic number, because the mean of its divisors is an integer number (167362146).

Almost surely, 2^1323231223 is an apocalyptic number.

1323231223 is a deficient number, since it is larger than the sum of its proper divisors (15665945).

1323231223 is an equidigital number, since it uses as much as digits as its factorization.

1323231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20753.

The product of its digits is 1296, while the sum is 22.

The square root of 1323231223 is about 36376.2453120165. The cubic root of 1323231223 is about 1097.8556636007.

Adding to 1323231223 its reverse (3221323231), we get a palindrome (4544554454).

The spelling of 1323231223 in words is "one billion, three hundred twenty-three million, two hundred thirty-one thousand, two hundred twenty-three".