1323223200 has 432 divisors, whose sum is σ = 5124109536. Its totient is φ = 319334400.

The previous prime is 1323223199. The next prime is 1323223241. The reversal of 1323223200 is 23223231.

It is a happy number.

1323223200 is a `hidden beast` number, since 1 + 323 + 22 + 320 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6271095 + ... + 6271305.

Almost surely, 2^1323223200 is an apocalyptic number.

1323223200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323223200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2562054768).

1323223200 is an abundant number, since it is smaller than the sum of its proper divisors (3800886336).

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

1323223200 is a wasteful number, since it uses less digits than its factorization.

1323223200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1323223200 is about 36376.1350338378. The cubic root of 1323223200 is about 1097.8534447611.

Adding to 1323223200 its reverse (23223231), we get a palindrome (1346446431).

The spelling of 1323223200 in words is "one billion, three hundred twenty-three million, two hundred twenty-three thousand, two hundred".