12110919128 has 32 divisors (see below), whose sum is σ = 28311240960. Its totient is φ = 4718539680.

The previous prime is 12110919113. The next prime is 12110919133. The reversal of 12110919128 is 82191901121.

It is a happy number.

It is a congruent number.

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, 9829676 + ... + 9830907.

It is an arithmetic number, because the mean of its divisors is an integer number (884726280).

Almost surely, 2^12110919128 is an apocalyptic number.

It is an amenable number.

12110919128 is an abundant number, since it is smaller than the sum of its proper divisors (16200321832).

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

12110919128 is a wasteful number, since it uses less digits than its factorization.

12110919128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19660607 (or 19660603 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 12110919128 in words is "twelve billion, one hundred ten million, nine hundred nineteen thousand, one hundred twenty-eight".