12312304343 has 4 divisors (see below), whose sum is σ = 12360212400. Its totient is φ = 12264396288.

The previous prime is 12312304313. The next prime is 12312304357. The reversal of 12312304343 is 34340321321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34340321321 = 3061 ⋅11218661.

It is a cyclic number.

It is not a de Polignac number, because 12312304343 - 2²⁰ = 12311255767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312304313) 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, 23953643 + ... + 23954156.

It is an arithmetic number, because the mean of its divisors is an integer number (3090053100).

Almost surely, 2^12312304343 is an apocalyptic number.

12312304343 is a deficient number, since it is larger than the sum of its proper divisors (47908057).

12312304343 is an equidigital number, since it uses as much as digits as its factorization.

12312304343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47908056.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 12312304343 its reverse (34340321321), we get a palindrome (46652625664).

The spelling of 12312304343 in words is "twelve billion, three hundred twelve million, three hundred four thousand, three hundred forty-three".