12311303111 has 2 divisors, whose sum is σ = 12311303112. Its totient is φ = 12311303110.

The previous prime is 12311303087. The next prime is 12311303129. The reversal of 12311303111 is 11130311321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311303111 - 2⁶ = 12311303047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12311303111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311303611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155651555 + 6155651556.

It is an arithmetic number, because the mean of its divisors is an integer number (6155651556).

Almost surely, 2^12311303111 is an apocalyptic number.

12311303111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311303111 is an equidigital number, since it uses as much as digits as its factorization.

12311303111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 12311303111 its reverse (11130311321), we get a palindrome (23441614432).

The spelling of 12311303111 in words is "twelve billion, three hundred eleven million, three hundred three thousand, one hundred eleven".