12402343305 has 72 divisors (see below), whose sum is σ = 23682597120. Its totient is φ = 5999716800.

The previous prime is 12402343277. The next prime is 12402343313. The reversal of 12402343305 is 50334320421.

12402343305 is a `hidden beast` number, since 12 + 4 + 0 + 2 + 343 + 305 = 666.

It is not a de Polignac number, because 12402343305 - 2⁸ = 12402343049 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2671176 + ... + 2675814.

It is an arithmetic number, because the mean of its divisors is an integer number (328924960).

Almost surely, 2^12402343305 is an apocalyptic number.

12402343305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12402343305 is a deficient number, since it is larger than the sum of its proper divisors (11280253815).

12402343305 is a wasteful number, since it uses less digits than its factorization.

12402343305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163 (or 5149 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 12402343305 its reverse (50334320421), we get a palindrome (62736663726).

The spelling of 12402343305 in words is "twelve billion, four hundred two million, three hundred forty-three thousand, three hundred five".