1323232400000 has 384 divisors, whose sum is σ = 3987307296000. Its totient is φ = 426977280000.

The previous prime is 1323232399939. The next prime is 1323232400003. The reversal of 1323232400000 is 42323231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1323232400003) 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, 47586101 + ... + 47613899.

It is an arithmetic number, because the mean of its divisors is an integer number (10383612750).

Almost surely, 2^{1323232400000} is an apocalyptic number.

1323232400000 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 1323232400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993653648000).

1323232400000 is an abundant number, since it is smaller than the sum of its proper divisors (2664074896000).

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

1323232400000 is an frugal number, since it uses more digits than its factorization.

1323232400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27862 (or 27830 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 1323232400000 its reverse (42323231), we get a palindrome (1323274723231).

The spelling of 1323232400000 in words is "one trillion, three hundred twenty-three billion, two hundred thirty-two million, four hundred thousand".