12031330123 has 2 divisors, whose sum is σ = 12031330124. Its totient is φ = 12031330122.

The previous prime is 12031330111. The next prime is 12031330127. The reversal of 12031330123 is 32103313021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031330123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12031330123.

It is not a weakly prime, because it can be changed into another prime (12031330127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015665061 + 6015665062.

It is an arithmetic number, because the mean of its divisors is an integer number (6015665062).

Almost surely, 2^12031330123 is an apocalyptic number.

12031330123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031330123 is an equidigital number, since it uses as much as digits as its factorization.

12031330123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12031330123 its reverse (32103313021), we get a palindrome (44134643144).

The spelling of 12031330123 in words is "twelve billion, thirty-one million, three hundred thirty thousand, one hundred twenty-three".