12930816105 has 56 divisors (see below), whose sum is σ = 23319592200. Its totient is φ = 6880204800.

The previous prime is 12930816089. The next prime is 12930816127. The reversal of 12930816105 is 50161803921.

12930816105 is a `hidden beast` number, since 1 + 2 + 9 + 30 + 8 + 1 + 610 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2690185689 + 10240630416 = 51867^2 + 101196^2 .

It is not a de Polignac number, because 12930816105 - 2⁴ = 12930816089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12930816105.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1632655 + ... + 1640555.

Almost surely, 2^12930816105 is an apocalyptic number.

12930816105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12930816105 is a deficient number, since it is larger than the sum of its proper divisors (10388776095).

12930816105 is an frugal number, since it uses more digits than its factorization.

12930816105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8373 (or 8358 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 12930816105 in words is "twelve billion, nine hundred thirty million, eight hundred sixteen thousand, one hundred five".