12312310111 has 2 divisors, whose sum is σ = 12312310112. Its totient is φ = 12312310110.

The previous prime is 12312310079. The next prime is 12312310123. The reversal of 12312310111 is 11101321321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12312310111 - 2⁵ = 12312310079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12312310411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156155055 + 6156155056.

It is an arithmetic number, because the mean of its divisors is an integer number (6156155056).

Almost surely, 2^12312310111 is an apocalyptic number.

12312310111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312310111 is an equidigital number, since it uses as much as digits as its factorization.

12312310111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12312310111 its reverse (11101321321), we get a palindrome (23413631432).

The spelling of 12312310111 in words is "twelve billion, three hundred twelve million, three hundred ten thousand, one hundred eleven".