12205316343 has 24 divisors (see below), whose sum is σ = 17916908800. Its totient is φ = 7385075280.

The previous prime is 12205316323. The next prime is 12205316369. The reversal of 12205316343 is 34361350221.

It is not a de Polignac number, because 12205316343 - 2³² = 7910349047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12205316343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205316323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197538 + ... + 251856.

Almost surely, 2^12205316343 is an apocalyptic number.

12205316343 is a deficient number, since it is larger than the sum of its proper divisors (5711592457).

12205316343 is a wasteful number, since it uses less digits than its factorization.

12205316343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54963 (or 54952 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 12205316343 its reverse (34361350221), we get a palindrome (46566666564).

The spelling of 12205316343 in words is "twelve billion, two hundred five million, three hundred sixteen thousand, three hundred forty-three".