12405206616103 has 4 divisors (see below), whose sum is σ = 14177378989840. Its totient is φ = 10633034242368.

The previous prime is 12405206616091. The next prime is 12405206616109. The reversal of 12405206616103 is 30161660250421.

12405206616103 is digitally balanced in base 2, 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 12405206616103 - 2³³ = 12396616681511 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 (12405206616109) 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, 886086186858 + ... + 886086186871.

It is an arithmetic number, because the mean of its divisors is an integer number (3544344747460).

Almost surely, 2^{12405206616103} is an apocalyptic number.

12405206616103 is a deficient number, since it is larger than the sum of its proper divisors (1772172373737).

12405206616103 is an equidigital number, since it uses as much as digits as its factorization.

12405206616103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772172373736.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 12405206616103 its reverse (30161660250421), we get a palindrome (42566866866524).

The spelling of 12405206616103 in words is "twelve trillion, four hundred five billion, two hundred six million, six hundred sixteen thousand, one hundred three".