12103103 has 4 divisors (see below), whose sum is σ = 12183408. Its totient is φ = 12022800.

The previous prime is 12103093. The next prime is 12103109. The reversal of 12103103 is 30130121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12103103 - 2⁴ = 12103087 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39926 + ... + 40227.

It is an arithmetic number, because the mean of its divisors is an integer number (3045852).

Almost surely, 2^12103103 is an apocalyptic number.

12103103 is a deficient number, since it is larger than the sum of its proper divisors (80305).

12103103 is an equidigital number, since it uses as much as digits as its factorization.

12103103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80304.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12103103 is about 3478.9514224835. The cubic root of 12103103 is about 229.5966655155.

Adding to 12103103 its reverse (30130121), we get a palindrome (42233224).

The spelling of 12103103 in words is "twelve million, one hundred three thousand, one hundred three".