12861041105 has 16 divisors (see below), whose sum is σ = 16852644864. Its totient is φ = 9344388480.

The previous prime is 12861041087. The next prime is 12861041107. The reversal of 12861041105 is 50114016821.

It is not a de Polignac number, because 12861041105 - 2⁶ = 12861041041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12861041107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56369 + ... + 169998.

It is an arithmetic number, because the mean of its divisors is an integer number (1053290304).

Almost surely, 2^12861041105 is an apocalyptic number.

It is an amenable number.

12861041105 is a deficient number, since it is larger than the sum of its proper divisors (3991603759).

12861041105 is a wasteful number, since it uses less digits than its factorization.

12861041105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227416.

The product of its (nonzero) digits is 1920, while the sum is 29.

Adding to 12861041105 its reverse (50114016821), we get a palindrome (62975057926).

The spelling of 12861041105 in words is "twelve billion, eight hundred sixty-one million, forty-one thousand, one hundred five".