12101103 has 32 divisors (see below), whose sum is σ = 20979200. Its totient is φ = 6749568.

The previous prime is 12101099. The next prime is 12101123. The reversal of 12101103 is 30110121.

12101103 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12101103 - 2² = 12101099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7383 + ... + 8871.

It is an arithmetic number, because the mean of its divisors is an integer number (655600).

Almost surely, 2^12101103 is an apocalyptic number.

12101103 is a deficient number, since it is larger than the sum of its proper divisors (8878097).

12101103 is a wasteful number, since it uses less digits than its factorization.

12101103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 12101103 is about 3478.6639676749. The cubic root of 12101103 is about 229.5840181080.

Adding to 12101103 its reverse (30110121), we get a palindrome (42211224).

The spelling of 12101103 in words is "twelve million, one hundred one thousand, one hundred three".