12125170851 has 8 divisors (see below), whose sum is σ = 16178135040. Its totient is φ = 8077826952.

The previous prime is 12125170823. The next prime is 12125170867. The reversal of 12125170851 is 15807152121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12125170851 - 2⁶ = 12125170787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12125174851) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1400035 + ... + 1408668.

It is an arithmetic number, because the mean of its divisors is an integer number (2022266880).

Almost surely, 2^12125170851 is an apocalyptic number.

12125170851 is a deficient number, since it is larger than the sum of its proper divisors (4052964189).

12125170851 is a wasteful number, since it uses less digits than its factorization.

12125170851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810145.

The product of its (nonzero) digits is 5600, while the sum is 33.

The spelling of 12125170851 in words is "twelve billion, one hundred twenty-five million, one hundred seventy thousand, eight hundred fifty-one".