11103728 has 20 divisors (see below), whose sum is σ = 21639240. Its totient is φ = 5519424.

The previous prime is 11103727. The next prime is 11103731. The reversal of 11103728 is 82730111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103727) 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 3 ways as a sum of consecutive naturals, for example, 926 + ... + 4802.

It is an arithmetic number, because the mean of its divisors is an integer number (1081962).

Almost surely, 2^11103728 is an apocalyptic number.

It is an amenable number.

11103728 is a deficient number, since it is larger than the sum of its proper divisors (10535512).

11103728 is a wasteful number, since it uses less digits than its factorization.

11103728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11103728 is about 3332.2256826332. The cubic root of 11103728 is about 223.0948807642.

Adding to 11103728 its reverse (82730111), we get a palindrome (93833839).

The spelling of 11103728 in words is "eleven million, one hundred three thousand, seven hundred twenty-eight".