11331020211 has 32 divisors (see below), whose sum is σ = 17853566976. Its totient is φ = 6255360000.

The previous prime is 11331020167. The next prime is 11331020237. The reversal of 11331020211 is 11202013311.

It is a happy number.

11331020211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11331020211 - 2⁷ = 11331020083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11331020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376771 + ... + 405731.

It is an arithmetic number, because the mean of its divisors is an integer number (557923968).

Almost surely, 2^11331020211 is an apocalyptic number.

11331020211 is a deficient number, since it is larger than the sum of its proper divisors (6522546765).

11331020211 is a wasteful number, since it uses less digits than its factorization.

11331020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29603.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11331020211 its reverse (11202013311), we get a palindrome (22533033522).

The spelling of 11331020211 in words is "eleven billion, three hundred thirty-one million, twenty thousand, two hundred eleven".