1211330133203 has 16 divisors (see below), whose sum is σ = 1280268000000. Its totient is φ = 1142920111392.

The previous prime is 1211330133187. The next prime is 1211330133227. The reversal of 1211330133203 is 3023310331121.

It is a cyclic number.

It is not a de Polignac number, because 1211330133203 - 2⁴ = 1211330133187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211330135203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4486073 + ... + 4748421.

It is an arithmetic number, because the mean of its divisors is an integer number (80016750000).

Almost surely, 2^{1211330133203} is an apocalyptic number.

1211330133203 is a deficient number, since it is larger than the sum of its proper divisors (68937866797).

1211330133203 is a wasteful number, since it uses less digits than its factorization.

1211330133203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263354.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1211330133203 its reverse (3023310331121), we get a palindrome (4234640464324).

The spelling of 1211330133203 in words is "one trillion, two hundred eleven billion, three hundred thirty million, one hundred thirty-three thousand, two hundred three".