12120103031 has 2 divisors, whose sum is σ = 12120103032. Its totient is φ = 12120103030.

The previous prime is 12120103019. The next prime is 12120103043. The reversal of 12120103031 is 13030102121.

12120103031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12120103019) and next prime (12120103043).

It is an emirp because it is prime and its reverse (13030102121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120103031 is a prime.

It is a super-2 number, since 2×12120103031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12120102997 and 12120103015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120103001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060051515 + 6060051516.

It is an arithmetic number, because the mean of its divisors is an integer number (6060051516).

Almost surely, 2^12120103031 is an apocalyptic number.

12120103031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120103031 is an equidigital number, since it uses as much as digits as its factorization.

12120103031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12120103031 its reverse (13030102121), we get a palindrome (25150205152).

The spelling of 12120103031 in words is "twelve billion, one hundred twenty million, one hundred three thousand, thirty-one".