11112311211 has 8 divisors (see below), whose sum is σ = 14839460160. Its totient is φ = 7396684872.

The previous prime is 11112311207. The next prime is 11112311237. The reversal of 11112311211 is 11211321111.

11112311211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11112311211 - 2² = 11112311207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11112311201) 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 7 ways as a sum of consecutive naturals, for example, 2878401 + ... + 2882258.

It is an arithmetic number, because the mean of its divisors is an integer number (1854932520).

Almost surely, 2^11112311211 is an apocalyptic number.

11112311211 is a deficient number, since it is larger than the sum of its proper divisors (3727148949).

11112311211 is an equidigital number, since it uses as much as digits as its factorization.

11112311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5761305.

The product of its digits is 12, while the sum is 15.

Adding to 11112311211 its reverse (11211321111), we get a palindrome (22323632322).

The spelling of 11112311211 in words is "eleven billion, one hundred twelve million, three hundred eleven thousand, two hundred eleven".