12123303231013 has 24 divisors (see below), whose sum is σ = 13259209602240. Its totient is φ = 11078780993280.

The previous prime is 12123303230953. The next prime is 12123303231037. The reversal of 12123303231013 is 31013230332121.

It is not a de Polignac number, because 12123303231013 - 2³³ = 12114713296421 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 (12123303231113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16034808 + ... + 16773838.

It is an arithmetic number, because the mean of its divisors is an integer number (552467066760).

Almost surely, 2^{12123303231013} is an apocalyptic number.

12123303231013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12123303231013 is a deficient number, since it is larger than the sum of its proper divisors (1135906371227).

12123303231013 is a wasteful number, since it uses less digits than its factorization.

12123303231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740029 (or 740016 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 12123303231013 its reverse (31013230332121), we get a palindrome (43136533563134).

The spelling of 12123303231013 in words is "twelve trillion, one hundred twenty-three billion, three hundred three million, two hundred thirty-one thousand, thirteen".