1232321200 has 240 divisors, whose sum is σ = 3387640320. Its totient is φ = 426880000.

The previous prime is 1232321183. The next prime is 1232321203. The reversal of 1232321200 is 21232321.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1232321203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12201150 + ... + 12201250.

It is an arithmetic number, because the mean of its divisors is an integer number (14115168).

Almost surely, 2^1232321200 is an apocalyptic number.

1232321200 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 1232321200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693820160).

1232321200 is an abundant number, since it is smaller than the sum of its proper divisors (2155319120).

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

1232321200 is a wasteful number, since it uses less digits than its factorization.

1232321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1232321200 is about 35104.4327685265. The cubic root of 1232321200 is about 1072.1148378869.

Adding to 1232321200 its reverse (21232321), we get a palindrome (1253553521).

The spelling of 1232321200 in words is "one billion, two hundred thirty-two million, three hundred twenty-one thousand, two hundred".