12340430423 has 4 divisors (see below), whose sum is σ = 12388447920. Its totient is φ = 12292412928.

The previous prime is 12340430413. The next prime is 12340430461. The reversal of 12340430423 is 32403404321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32403404321 = 3881 ⋅8349241.

It is a cyclic number.

It is not a de Polignac number, because 12340430423 - 2²⁶ = 12273321559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12340430392 and 12340430401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340430413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24008363 + ... + 24008876.

It is an arithmetic number, because the mean of its divisors is an integer number (3097111980).

Almost surely, 2^12340430423 is an apocalyptic number.

12340430423 is a deficient number, since it is larger than the sum of its proper divisors (48017497).

12340430423 is an equidigital number, since it uses as much as digits as its factorization.

12340430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48017496.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 12340430423 its reverse (32403404321), we get a palindrome (44743834744).

The spelling of 12340430423 in words is "twelve billion, three hundred forty million, four hundred thirty thousand, four hundred twenty-three".