1203200055 has 32 divisors (see below), whose sum is σ = 2208030720. Its totient is φ = 621004320.

The previous prime is 1203200029. The next prime is 1203200087. The reversal of 1203200055 is 5500023021.

It is a happy number.

It is not a de Polignac number, because 1203200055 - 2¹⁴ = 1203183671 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139567 + ... + 147936.

It is an arithmetic number, because the mean of its divisors is an integer number (69000960).

Almost surely, 2^1203200055 is an apocalyptic number.

1203200055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1203200055 is a deficient number, since it is larger than the sum of its proper divisors (1004830665).

1203200055 is a wasteful number, since it uses less digits than its factorization.

1203200055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287548 (or 287542 counting only the distinct ones).

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

The square root of 1203200055 is about 34687.1742146863. The cubic root of 1203200055 is about 1063.6023323939.

Adding to 1203200055 its reverse (5500023021), we get a palindrome (6703223076).

The spelling of 1203200055 in words is "one billion, two hundred three million, two hundred thousand, fifty-five".