1323040552000 has 224 divisors, whose sum is σ = 3408535728000. Its totient is φ = 508096870400.

The previous prime is 1323040551967. The next prime is 1323040552081. The reversal of 1323040552000 is 2550403231.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41512071 + ... + 41543929.

Almost surely, 2^{1323040552000} is an apocalyptic number.

1323040552000 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 1323040552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704267864000).

1323040552000 is an abundant number, since it is smaller than the sum of its proper divisors (2085495176000).

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

1323040552000 is a wasteful number, since it uses less digits than its factorization.

1323040552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32094 (or 32074 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 1323040552000 its reverse (2550403231), we get a palindrome (1325590955231).

The spelling of 1323040552000 in words is "one trillion, three hundred twenty-three billion, forty million, five hundred fifty-two thousand".