12312111323 has 2 divisors, whose sum is σ = 12312111324. Its totient is φ = 12312111322.

The previous prime is 12312111313. The next prime is 12312111401. The reversal of 12312111323 is 32311121321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12312111323 - 2⁸ = 12312111067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12312111295 and 12312111304.

It is not a weakly prime, because it can be changed into another prime (12312111313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156055661 + 6156055662.

It is an arithmetic number, because the mean of its divisors is an integer number (6156055662).

Almost surely, 2^12312111323 is an apocalyptic number.

12312111323 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312111323 is an equidigital number, since it uses as much as digits as its factorization.

12312111323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

Adding to 12312111323 its reverse (32311121321), we get a palindrome (44623232644).

The spelling of 12312111323 in words is "twelve billion, three hundred twelve million, one hundred eleven thousand, three hundred twenty-three".