11133321211 has 4 divisors (see below), whose sum is σ = 11290128624. Its totient is φ = 10976513800.

The previous prime is 11133321209. The next prime is 11133321229. The reversal of 11133321211 is 11212333111.

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 11133321211 - 2¹ = 11133321209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11133321011) 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, 78403600 + ... + 78403741.

It is an arithmetic number, because the mean of its divisors is an integer number (2822532156).

Almost surely, 2^11133321211 is an apocalyptic number.

11133321211 is a deficient number, since it is larger than the sum of its proper divisors (156807413).

11133321211 is an equidigital number, since it uses as much as digits as its factorization.

11133321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156807412.

The product of its digits is 108, while the sum is 19.

Adding to 11133321211 its reverse (11212333111), we get a palindrome (22345654322).

The spelling of 11133321211 in words is "eleven billion, one hundred thirty-three million, three hundred twenty-one thousand, two hundred eleven".