12142891108 has 12 divisors (see below), whose sum is σ = 22368483760. Its totient is φ = 5751895752.

The previous prime is 12142891099. The next prime is 12142891133. The reversal of 12142891108 is 80119824121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79887366 + ... + 79887517.

Almost surely, 2^12142891108 is an apocalyptic number.

It is an amenable number.

12142891108 is a deficient number, since it is larger than the sum of its proper divisors (10225592652).

12142891108 is a wasteful number, since it uses less digits than its factorization.

12142891108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159774906 (or 159774904 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 37.

The spelling of 12142891108 in words is "twelve billion, one hundred forty-two million, eight hundred ninety-one thousand, one hundred eight".