111056128 has 18 divisors (see below), whose sum is σ = 221678954. Its totient is φ = 55527936.

The previous prime is 111056123. The next prime is 111056131. The reversal of 111056128 is 821650111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 102576384 + 8479744 = 10128^2 + 2912^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111056123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216651 + ... + 217162.

Almost surely, 2^111056128 is an apocalyptic number.

It is an amenable number.

111056128 is a deficient number, since it is larger than the sum of its proper divisors (110622826).

111056128 is an frugal number, since it uses more digits than its factorization.

111056128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433829 (or 433815 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 25.

The square root of 111056128 is about 10538.3171332049. The cubic root of 111056128 is about 480.6705443168.

The spelling of 111056128 in words is "one hundred eleven million, fifty-six thousand, one hundred twenty-eight".