111831260928 has 144 divisors (see below), whose sum is σ = 311588798976. Its totient is φ = 35539947520.

The previous prime is 111831260917. The next prime is 111831260963. The reversal of 111831260928 is 829062138111.

It is a self number, because there is not a number n which added to its sum of digits gives 111831260928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5483326 + ... + 5503682.

It is an arithmetic number, because the mean of its divisors is an integer number (2163811104).

Almost surely, 2^111831260928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111831260928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155794399488).

111831260928 is an abundant number, since it is smaller than the sum of its proper divisors (199757538048).

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

111831260928 is a wasteful number, since it uses less digits than its factorization.

111831260928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20710 (or 20696 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The spelling of 111831260928 in words is "one hundred eleven billion, eight hundred thirty-one million, two hundred sixty thousand, nine hundred twenty-eight".