1200200103203 has 2 divisors, whose sum is σ = 1200200103204. Its totient is φ = 1200200103202.

The previous prime is 1200200103187. The next prime is 1200200103211. The reversal of 1200200103203 is 3023010020021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200200103203 - 2⁴ = 1200200103187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200200103233) by changing a digit.

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 as a sum of consecutive naturals, namely, 600100051601 + 600100051602.

It is an arithmetic number, because the mean of its divisors is an integer number (600100051602).

Almost surely, 2^{1200200103203} is an apocalyptic number.

1200200103203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200200103203 is an equidigital number, since it uses as much as digits as its factorization.

1200200103203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1200200103203 its reverse (3023010020021), we get a palindrome (4223210123224).

The spelling of 1200200103203 in words is "one trillion, two hundred billion, two hundred million, one hundred three thousand, two hundred three".