12321003031 has 2 divisors, whose sum is σ = 12321003032. Its totient is φ = 12321003030.

The previous prime is 12321002971. The next prime is 12321003049. The reversal of 12321003031 is 13030012321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12321003031 - 2¹⁹ = 12320478743 is a prime.

It is a super-2 number, since 2×12321003031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12321002996 and 12321003014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321003091) 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, 6160501515 + 6160501516.

It is an arithmetic number, because the mean of its divisors is an integer number (6160501516).

Almost surely, 2^12321003031 is an apocalyptic number.

12321003031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321003031 is an equidigital number, since it uses as much as digits as its factorization.

12321003031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12321003031 its reverse (13030012321), we get a palindrome (25351015352).

The spelling of 12321003031 in words is "twelve billion, three hundred twenty-one million, three thousand, thirty-one".