12103331103 has 24 divisors (see below), whose sum is σ = 17534316800. Its totient is φ = 8045056080.

The previous prime is 12103331099. The next prime is 12103331129. The reversal of 12103331103 is 30113330121.

It is a happy number.

It is not a de Polignac number, because 12103331103 - 2² = 12103331099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103331143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7122948 + ... + 7124646.

Almost surely, 2^12103331103 is an apocalyptic number.

12103331103 is a deficient number, since it is larger than the sum of its proper divisors (5430985697).

12103331103 is a wasteful number, since it uses less digits than its factorization.

12103331103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579 (or 3576 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 12103331103 its reverse (30113330121), we get a palindrome (42216661224).

It can be divided in two parts, 12103 and 331103, that added together give a triangular number (343206 = T₈₂₈).

The spelling of 12103331103 in words is "twelve billion, one hundred three million, three hundred thirty-one thousand, one hundred three".