13231313111 has 2 divisors, whose sum is σ = 13231313112. Its totient is φ = 13231313110.

The previous prime is 13231313107. The next prime is 13231313203. The reversal of 13231313111 is 11131313231.

13231313111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (11131313231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13231313111 - 2² = 13231313107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231913111) 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 as a sum of consecutive naturals, namely, 6615656555 + 6615656556.

It is an arithmetic number, because the mean of its divisors is an integer number (6615656556).

Almost surely, 2^13231313111 is an apocalyptic number.

13231313111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231313111 is an equidigital number, since it uses as much as digits as its factorization.

13231313111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 20.

Adding to 13231313111 its reverse (11131313231), we get a palindrome (24362626342).

The spelling of 13231313111 in words is "thirteen billion, two hundred thirty-one million, three hundred thirteen thousand, one hundred eleven".