12321321193 has 2 divisors, whose sum is σ = 12321321194. Its totient is φ = 12321321192.

The previous prime is 12321321161. The next prime is 12321321223. The reversal of 12321321193 is 39112312321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11899100889 + 422220304 = 109083^2 + 20548^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321321193 - 2⁵ = 12321321161 is a prime.

It is not a weakly prime, because it can be changed into another prime (12321121193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160660596 + 6160660597.

It is an arithmetic number, because the mean of its divisors is an integer number (6160660597).

Almost surely, 2^12321321193 is an apocalyptic number.

It is an amenable number.

12321321193 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321321193 is an equidigital number, since it uses as much as digits as its factorization.

12321321193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The spelling of 12321321193 in words is "twelve billion, three hundred twenty-one million, three hundred twenty-one thousand, one hundred ninety-three".