12642103 has 4 divisors (see below), whose sum is σ = 12658288. Its totient is φ = 12625920.

The previous prime is 12642083. The next prime is 12642109. The reversal of 12642103 is 30124621.

12642103 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12642103 - 2¹³ = 12633911 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 (12642109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6858 + ... + 8503.

It is an arithmetic number, because the mean of its divisors is an integer number (3164572).

Almost surely, 2^12642103 is an apocalyptic number.

12642103 is a deficient number, since it is larger than the sum of its proper divisors (16185).

12642103 is an equidigital number, since it uses as much as digits as its factorization.

12642103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16184.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12642103 is about 3555.5735121074. The cubic root of 12642103 is about 232.9555749203.

Adding to 12642103 its reverse (30124621), we get a palindrome (42766724).

The spelling of 12642103 in words is "twelve million, six hundred forty-two thousand, one hundred three".