12321981167 has 2 divisors, whose sum is σ = 12321981168. Its totient is φ = 12321981166.

The previous prime is 12321981163. The next prime is 12321981169. The reversal of 12321981167 is 76118912321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12321981167 - 2² = 12321981163 is a prime.

Together with 12321981169, 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 (12321981163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160990583 + 6160990584.

It is an arithmetic number, because the mean of its divisors is an integer number (6160990584).

Almost surely, 2^12321981167 is an apocalyptic number.

12321981167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321981167 is an equidigital number, since it uses as much as digits as its factorization.

12321981167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 41.

The spelling of 12321981167 in words is "twelve billion, three hundred twenty-one million, nine hundred eighty-one thousand, one hundred sixty-seven".