12123330031 has 2 divisors, whose sum is σ = 12123330032. Its totient is φ = 12123330030.

The previous prime is 12123330013. The next prime is 12123330041. The reversal of 12123330031 is 13003332121.

Together with previous prime (12123330013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123330031 is a prime.

It is a super-2 number, since 2×12123330031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12123329990 and 12123330008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123330041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061665015 + 6061665016.

It is an arithmetic number, because the mean of its divisors is an integer number (6061665016).

Almost surely, 2^12123330031 is an apocalyptic number.

12123330031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123330031 is an equidigital number, since it uses as much as digits as its factorization.

12123330031 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 12123330031 its reverse (13003332121), we get a palindrome (25126662152).

The spelling of 12123330031 in words is "twelve billion, one hundred twenty-three million, three hundred thirty thousand, thirty-one".