12321766031 has 2 divisors, whose sum is σ = 12321766032. Its totient is φ = 12321766030.

The previous prime is 12321766027. The next prime is 12321766033. The reversal of 12321766031 is 13066712321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12321766031 - 2² = 12321766027 is a prime.

It is a super-2 number, since 2×12321766031² (a number of 21 digits) contains 22 as substring.

Together with 12321766033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321766033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160883015 + 6160883016.

It is an arithmetic number, because the mean of its divisors is an integer number (6160883016).

Almost surely, 2^12321766031 is an apocalyptic number.

12321766031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321766031 is an equidigital number, since it uses as much as digits as its factorization.

12321766031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 12321766031 in words is "twelve billion, three hundred twenty-one million, seven hundred sixty-six thousand, thirty-one".