12321323103 has 4 divisors (see below), whose sum is σ = 16428430808. Its totient is φ = 8214215400.

The previous prime is 12321323099. The next prime is 12321323107. The reversal of 12321323103 is 30132312321.

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

It is an interprime number because it is at equal distance from previous prime (12321323099) and next prime (12321323107).

It is not a de Polignac number, because 12321323103 - 2² = 12321323099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12321323103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321323107) 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, 2053553848 + ... + 2053553853.

It is an arithmetic number, because the mean of its divisors is an integer number (4107107702).

Almost surely, 2^12321323103 is an apocalyptic number.

12321323103 is a deficient number, since it is larger than the sum of its proper divisors (4107107705).

12321323103 is an equidigital number, since it uses as much as digits as its factorization.

12321323103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107107704.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12321323103 its reverse (30132312321), we get a palindrome (42453635424).

The spelling of 12321323103 in words is "twelve billion, three hundred twenty-one million, three hundred twenty-three thousand, one hundred three".