12231123103 has 4 divisors (see below), whose sum is σ = 12762911088. Its totient is φ = 11699335120.

The previous prime is 12231123101. The next prime is 12231123109. The reversal of 12231123103 is 30132113221.

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 12231123103 - 2¹ = 12231123101 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 (12231123101) 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, 265893958 + ... + 265894003.

It is an arithmetic number, because the mean of its divisors is an integer number (3190727772).

Almost surely, 2^12231123103 is an apocalyptic number.

12231123103 is a deficient number, since it is larger than the sum of its proper divisors (531787985).

12231123103 is an equidigital number, since it uses as much as digits as its factorization.

12231123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531787984.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12231123103 its reverse (30132113221), we get a palindrome (42363236324).

The spelling of 12231123103 in words is "twelve billion, two hundred thirty-one million, one hundred twenty-three thousand, one hundred three".