11103612 has 48 divisors (see below), whose sum is σ = 28200480. Its totient is φ = 3379968.

The previous prime is 11103583. The next prime is 11103613. The reversal of 11103612 is 21630111.

It is a junction number, because it is equal to n+sod(n) for n = 11103591 and 11103600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16678 + ... + 17330.

It is an arithmetic number, because the mean of its divisors is an integer number (587510).

Almost surely, 2^11103612 is an apocalyptic number.

11103612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11103612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14100240).

11103612 is an abundant number, since it is smaller than the sum of its proper divisors (17096868).

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

11103612 is a wasteful number, since it uses less digits than its factorization.

11103612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 11103612 is about 3332.2082768038. The cubic root of 11103612 is about 223.0941038751.

Adding to 11103612 its reverse (21630111), we get a palindrome (32733723).

The spelling of 11103612 in words is "eleven million, one hundred three thousand, six hundred twelve".