11128403 has 16 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 9173280.

The previous prime is 11128399. The next prime is 11128417. The reversal of 11128403 is 30482111.

It is a cyclic number.

It is not a de Polignac number, because 11128403 - 2² = 11128399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11128903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7778 + ... + 9096.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^11128403 is an apocalyptic number.

11128403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11128403 is a deficient number, since it is larger than the sum of its proper divisors (2177197).

11128403 is a wasteful number, since it uses less digits than its factorization.

11128403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 11128403 is about 3335.9261082944. The cubic root of 11128403 is about 223.2600142978.

The spelling of 11128403 in words is "eleven million, one hundred twenty-eight thousand, four hundred three".