12125317146 has 16 divisors (see below), whose sum is σ = 25305009984. Its totient is φ = 3866043104.

The previous prime is 12125317097. The next prime is 12125317159. The reversal of 12125317146 is 64171352121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43932171 + ... + 43932446.

It is an arithmetic number, because the mean of its divisors is an integer number (1581563124).

Almost surely, 2^12125317146 is an apocalyptic number.

12125317146 is an abundant number, since it is smaller than the sum of its proper divisors (13179692838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12125317146 is a wasteful number, since it uses less digits than its factorization.

12125317146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87864645.

The product of its digits is 10080, while the sum is 33.

Adding to 12125317146 its reverse (64171352121), we get a palindrome (76296669267).

The spelling of 12125317146 in words is "twelve billion, one hundred twenty-five million, three hundred seventeen thousand, one hundred forty-six".