1201211133203 has 4 divisors (see below), whose sum is σ = 1202201415648. Its totient is φ = 1200220850760.

The previous prime is 1201211133163. The next prime is 1201211133209. The reversal of 1201211133203 is 3023311121021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201211133203 - 2²⁴ = 1201194355987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201211133209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495139403 + ... + 495141828.

It is an arithmetic number, because the mean of its divisors is an integer number (300550353912).

Almost surely, 2^{1201211133203} is an apocalyptic number.

1201211133203 is a deficient number, since it is larger than the sum of its proper divisors (990282445).

1201211133203 is an equidigital number, since it uses as much as digits as its factorization.

1201211133203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990282444.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1201211133203 its reverse (3023311121021), we get a palindrome (4224522254224).

The spelling of 1201211133203 in words is "one trillion, two hundred one billion, two hundred eleven million, one hundred thirty-three thousand, two hundred three".