1320621304200 has 192 divisors, whose sum is σ = 4477770547200. Its totient is φ = 319314105600.

The previous prime is 1320621304147. The next prime is 1320621304201. The reversal of 1320621304200 is 24031260231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1320621304201) 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, 2266581 + ... + 2789019.

It is an arithmetic number, because the mean of its divisors is an integer number (23321721600).

Almost surely, 2^{1320621304200} is an apocalyptic number.

1320621304200 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 1320621304200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238885273600).

1320621304200 is an abundant number, since it is smaller than the sum of its proper divisors (3157149243000).

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

1320621304200 is a wasteful number, since it uses less digits than its factorization.

1320621304200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522852 (or 522843 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1320621304200 its reverse (24031260231), we get a palindrome (1344652564431).

The spelling of 1320621304200 in words is "one trillion, three hundred twenty billion, six hundred twenty-one million, three hundred four thousand, two hundred".