11313111211 has 2 divisors, whose sum is σ = 11313111212. Its totient is φ = 11313111210.

The previous prime is 11313111209. The next prime is 11313111217. The reversal of 11313111211 is 11211131311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11313111211 - 2¹ = 11313111209 is a prime.

Together with 11313111209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11313111217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656555605 + 5656555606.

It is an arithmetic number, because the mean of its divisors is an integer number (5656555606).

Almost surely, 2^11313111211 is an apocalyptic number.

11313111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11313111211 is an equidigital number, since it uses as much as digits as its factorization.

11313111211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18, while the sum is 16.

Adding to 11313111211 its reverse (11211131311), we get a palindrome (22524242522).

The spelling of 11313111211 in words is "eleven billion, three hundred thirteen million, one hundred eleven thousand, two hundred eleven".