1211133022303 has 4 divisors (see below), whose sum is σ = 1282376141280. Its totient is φ = 1139889903328.

The previous prime is 1211133022289. The next prime is 1211133022331. The reversal of 1211133022303 is 3032203311121.

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 1211133022303 - 2¹⁷ = 1211132891231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211133022403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35621559463 + ... + 35621559496.

It is an arithmetic number, because the mean of its divisors is an integer number (320594035320).

Almost surely, 2^{1211133022303} is an apocalyptic number.

1211133022303 is a deficient number, since it is larger than the sum of its proper divisors (71243118977).

1211133022303 is an equidigital number, since it uses as much as digits as its factorization.

1211133022303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71243118976.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1211133022303 its reverse (3032203311121), we get a palindrome (4243336333424).

The spelling of 1211133022303 in words is "one trillion, two hundred eleven billion, one hundred thirty-three million, twenty-two thousand, three hundred three".