12321210321031 has 2 divisors, whose sum is σ = 12321210321032. Its totient is φ = 12321210321030.

The previous prime is 12321210321029. The next prime is 12321210321037. The reversal of 12321210321031 is 13012301212321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12321210321031 - 2¹ = 12321210321029 is a prime.

It is a super-2 number, since 2×12321210321031² (a number of 27 digits) contains 22 as substring.

Together with 12321210321029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12321210320993 and 12321210321011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321210321037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160605160515 + 6160605160516.

It is an arithmetic number, because the mean of its divisors is an integer number (6160605160516).

Almost surely, 2^{12321210321031} is an apocalyptic number.

12321210321031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321210321031 is an equidigital number, since it uses as much as digits as its factorization.

12321210321031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12321210321031 its reverse (13012301212321), we get a palindrome (25333511533352).

The spelling of 12321210321031 in words is "twelve trillion, three hundred twenty-one billion, two hundred ten million, three hundred twenty-one thousand, thirty-one".