12523715105 has 64 divisors (see below), whose sum is σ = 17428884480. Its totient is φ = 8554291200.

The previous prime is 12523715069. The next prime is 12523715111. The reversal of 12523715105 is 50151732521.

12523715105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12523715105 - 2¹⁸ = 12523452961 is a prime.

It is a super-2 number, since 2×12523715105² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9436952 + ... + 9438278.

It is an arithmetic number, because the mean of its divisors is an integer number (272326320).

Almost surely, 2^12523715105 is an apocalyptic number.

It is an amenable number.

12523715105 is a deficient number, since it is larger than the sum of its proper divisors (4905169375).

12523715105 is a wasteful number, since it uses less digits than its factorization.

12523715105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530.

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 12523715105 in words is "twelve billion, five hundred twenty-three million, seven hundred fifteen thousand, one hundred five".