11103688 has 8 divisors (see below), whose sum is σ = 20819430. Its totient is φ = 5551840.

The previous prime is 11103671. The next prime is 11103689. The reversal of 11103688 is 88630111.

It is a happy number.

11103688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10099684 + 1004004 = 3178^2 + 1002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11103689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693973 + ... + 693988.

Almost surely, 2^11103688 is an apocalyptic number.

It is an amenable number.

11103688 is a deficient number, since it is larger than the sum of its proper divisors (9715742).

11103688 is a wasteful number, since it uses less digits than its factorization.

11103688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387967 (or 1387963 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 11103688 is about 3332.2196806333. The cubic root of 11103688 is about 223.0946128720.

Adding to 11103688 its reverse (88630111), we get a palindrome (99733799).

The spelling of 11103688 in words is "eleven million, one hundred three thousand, six hundred eighty-eight".