1211232132203 has 4 divisors (see below), whose sum is σ = 1239400321368. Its totient is φ = 1183063943040.

The previous prime is 1211232132179. The next prime is 1211232132211. The reversal of 1211232132203 is 3022312321121.

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 1211232132203 - 2⁶ = 1211232132139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211232132233) 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 3 ways as a sum of consecutive naturals, for example, 14084094518 + ... + 14084094603.

It is an arithmetic number, because the mean of its divisors is an integer number (309850080342).

Almost surely, 2^{1211232132203} is an apocalyptic number.

1211232132203 is a deficient number, since it is larger than the sum of its proper divisors (28168189165).

1211232132203 is an equidigital number, since it uses as much as digits as its factorization.

1211232132203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28168189164.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1211232132203 its reverse (3022312321121), we get a palindrome (4233544453324).

The spelling of 1211232132203 in words is "one trillion, two hundred eleven billion, two hundred thirty-two million, one hundred thirty-two thousand, two hundred three".