12311111011 has 2 divisors, whose sum is σ = 12311111012. Its totient is φ = 12311111010.

The previous prime is 12311110969. The next prime is 12311111053. The reversal of 12311111011 is 11011111321.

It is a balanced prime because it is at equal distance from previous prime (12311110969) and next prime (12311111053).

It is a cyclic number.

It is not a de Polignac number, because 12311111011 - 2²⁹ = 11774240099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12311110982 and 12311111000.

It is not a weakly prime, because it can be changed into another prime (12311111081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155555505 + 6155555506.

It is an arithmetic number, because the mean of its divisors is an integer number (6155555506).

Almost surely, 2^12311111011 is an apocalyptic number.

12311111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311111011 is an equidigital number, since it uses as much as digits as its factorization.

12311111011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 12311111011 its reverse (11011111321), we get a palindrome (23322222332).

The spelling of 12311111011 in words is "twelve billion, three hundred eleven million, one hundred eleven thousand, eleven".