1323103200000 has 432 divisors, whose sum is σ = 4660500771360. Its totient is φ = 332062720000.

The previous prime is 1323103199981. The next prime is 1323103200007. The reversal of 1323103200000 is 23013231.

It is a super-3 number, since 3×1323103200000³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1323103200007) 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, 40783786 + ... + 40816214.

It is an arithmetic number, because the mean of its divisors is an integer number (10788196230).

Almost surely, 2^{1323103200000} is an apocalyptic number.

1323103200000 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 1323103200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2330250385680).

1323103200000 is an abundant number, since it is smaller than the sum of its proper divisors (3337397571360).

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

1323103200000 is an frugal number, since it uses more digits than its factorization.

1323103200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32490 (or 32456 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 1323103200000 its reverse (23013231), we get a palindrome (1323126213231).

The spelling of 1323103200000 in words is "one trillion, three hundred twenty-three billion, one hundred three million, two hundred thousand".