1200320320200 has 96 divisors (see below), whose sum is σ = 3721591966560. Its totient is φ = 320033894400.

The previous prime is 1200320320189. The next prime is 1200320320301. The reversal of 1200320320200 is 20230230021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1200320320200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3644355 + ... + 3960045.

It is an arithmetic number, because the mean of its divisors is an integer number (38766582985).

Almost surely, 2^{1200320320200} is an apocalyptic number.

1200320320200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200320320200 is an abundant number, since it is smaller than the sum of its proper divisors (2521271646360).

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

1200320320200 is a wasteful number, since it uses less digits than its factorization.

1200320320200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322047 (or 322038 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 1200320320200 its reverse (20230230021), we get a palindrome (1220550550221).

The spelling of 1200320320200 in words is "one trillion, two hundred billion, three hundred twenty million, three hundred twenty thousand, two hundred".