12321232103 has 16 divisors (see below), whose sum is σ = 13184045280. Its totient is φ = 11474390016.

The previous prime is 12321232051. The next prime is 12321232109. The reversal of 12321232103 is 30123212321.

It is a cyclic number.

It is not a de Polignac number, because 12321232103 - 2¹⁰ = 12321231079 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321232109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624851 + ... + 644267.

It is an arithmetic number, because the mean of its divisors is an integer number (824002830).

Almost surely, 2^12321232103 is an apocalyptic number.

12321232103 is a deficient number, since it is larger than the sum of its proper divisors (862813177).

12321232103 is a wasteful number, since it uses less digits than its factorization.

12321232103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19826.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12321232103 its reverse (30123212321), we get a palindrome (42444444424).

The spelling of 12321232103 in words is "twelve billion, three hundred twenty-one million, two hundred thirty-two thousand, one hundred three".