12312403234423 has 2 divisors, whose sum is σ = 12312403234424. Its totient is φ = 12312403234422.

The previous prime is 12312403234409. The next prime is 12312403234441. The reversal of 12312403234423 is 32443230421321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12312403234423 - 2²⁵ = 12312369679991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12312403238423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156201617211 + 6156201617212.

It is an arithmetic number, because the mean of its divisors is an integer number (6156201617212).

Almost surely, 2^{12312403234423} is an apocalyptic number.

12312403234423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312403234423 is an equidigital number, since it uses as much as digits as its factorization.

12312403234423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 12312403234423 its reverse (32443230421321), we get a palindrome (44755633655744).

The spelling of 12312403234423 in words is "twelve trillion, three hundred twelve billion, four hundred three million, two hundred thirty-four thousand, four hundred twenty-three".