1323223132 has 48 divisors (see below), whose sum is σ = 2903281920. Its totient is φ = 512640000.

The previous prime is 1323223129. The next prime is 1323223177. The reversal of 1323223132 is 2313223231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43132 + ... + 67132.

It is an arithmetic number, because the mean of its divisors is an integer number (60485040).

Almost surely, 2^1323223132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323223132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451640960).

1323223132 is an abundant number, since it is smaller than the sum of its proper divisors (1580058788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323223132 is a wasteful number, since it uses less digits than its factorization.

1323223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24202 (or 24200 counting only the distinct ones).

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

The square root of 1323223132 is about 36376.1340991590. The cubic root of 1323223132 is about 1097.8534259550.

Adding to 1323223132 its reverse (2313223231), we get a palindrome (3636446363).

Subtracting 1323223132 from its reverse (2313223231), we obtain a palindrome (990000099).

The spelling of 1323223132 in words is "one billion, three hundred twenty-three million, two hundred twenty-three thousand, one hundred thirty-two".