12343220343 has 8 divisors (see below), whose sum is σ = 18286252400. Its totient is φ = 8228813544.

The previous prime is 12343220339. The next prime is 12343220347. The reversal of 12343220343 is 34302234321.

12343220343 is a `hidden beast` number, since 1 + 23 + 432 + 203 + 4 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (12343220339) and next prime (12343220347).

It is not a de Polignac number, because 12343220343 - 2² = 12343220339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 457156309 = 12343220343 / (1 + 2 + 3 + 4 + 3 + 2 + 2 + 0 + 3 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12343220347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228578128 + ... + 228578181.

It is an arithmetic number, because the mean of its divisors is an integer number (2285781550).

Almost surely, 2^12343220343 is an apocalyptic number.

12343220343 is a deficient number, since it is larger than the sum of its proper divisors (5943032057).

12343220343 is an equidigital number, since it uses as much as digits as its factorization.

12343220343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457156318 (or 457156312 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 12343220343 its reverse (34302234321), we get a palindrome (46645454664).

The spelling of 12343220343 in words is "twelve billion, three hundred forty-three million, two hundred twenty thousand, three hundred forty-three".