1200113321203 has 24 divisors (see below), whose sum is σ = 1247054154192. Its totient is φ = 1154747962368.

The previous prime is 1200113321137. The next prime is 1200113321207. The reversal of 1200113321203 is 3021233110021.

It is not a de Polignac number, because 1200113321203 - 2⁹ = 1200113320691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200113321207) by changing a digit.

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, 54162775 + ... + 54184927.

It is an arithmetic number, because the mean of its divisors is an integer number (51960589758).

Almost surely, 2^{1200113321203} is an apocalyptic number.

1200113321203 is a deficient number, since it is larger than the sum of its proper divisors (46940832989).

1200113321203 is an equidigital number, since it uses as much as digits as its factorization.

1200113321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22675 (or 22632 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200113321203 its reverse (3021233110021), we get a palindrome (4221346431224).

The spelling of 1200113321203 in words is "one trillion, two hundred billion, one hundred thirteen million, three hundred twenty-one thousand, two hundred three".