12312320320103 has 4 divisors (see below), whose sum is σ = 12514161636888. Its totient is φ = 12110479003320.

The previous prime is 12312320320093. The next prime is 12312320320151. The reversal of 12312320320103 is 30102302321321.

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 12312320320103 - 2²⁴ = 12312303542887 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 (12312320320303) 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, 100920658301 + ... + 100920658422.

It is an arithmetic number, because the mean of its divisors is an integer number (3128540409222).

Almost surely, 2^{12312320320103} is an apocalyptic number.

12312320320103 is a deficient number, since it is larger than the sum of its proper divisors (201841316785).

12312320320103 is an equidigital number, since it uses as much as digits as its factorization.

12312320320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201841316784.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12312320320103 its reverse (30102302321321), we get a palindrome (42414622641424).

The spelling of 12312320320103 in words is "twelve trillion, three hundred twelve billion, three hundred twenty million, three hundred twenty thousand, one hundred three".