12311040023 has 2 divisors, whose sum is σ = 12311040024. Its totient is φ = 12311040022.

The previous prime is 12311040019. The next prime is 12311040121. The reversal of 12311040023 is 32004011321.

It is a weak prime.

It is an emirp because it is prime and its reverse (32004011321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12311040023 - 2² = 12311040019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12311039983 and 12311040010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311048023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155520011 + 6155520012.

It is an arithmetic number, because the mean of its divisors is an integer number (6155520012).

Almost surely, 2^12311040023 is an apocalyptic number.

12311040023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311040023 is an equidigital number, since it uses as much as digits as its factorization.

12311040023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12311040023 its reverse (32004011321), we get a palindrome (44315051344).

The spelling of 12311040023 in words is "twelve billion, three hundred eleven million, forty thousand, twenty-three".