1200200355 has 16 divisors (see below), whose sum is σ = 2133689760. Its totient is φ = 640106784.

The previous prime is 1200200327. The next prime is 1200200381. The reversal of 1200200355 is 5530020021.

It is a happy number.

It is not a de Polignac number, because 1200200355 - 2⁶ = 1200200291 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4445052 + ... + 4445321.

It is an arithmetic number, because the mean of its divisors is an integer number (133355610).

Almost surely, 2^1200200355 is an apocalyptic number.

1200200355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1200200355 is a deficient number, since it is larger than the sum of its proper divisors (933489405).

1200200355 is an equidigital number, since it uses as much as digits as its factorization.

1200200355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8890387 (or 8890381 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1200200355 is about 34643.9079060085. The cubic root of 1200200355 is about 1062.7177072686.

Adding to 1200200355 its reverse (5530020021), we get a palindrome (6730220376).

The spelling of 1200200355 in words is "one billion, two hundred million, two hundred thousand, three hundred fifty-five".