12321032197 has 2 divisors, whose sum is σ = 12321032198. Its totient is φ = 12321032196.

The previous prime is 12321032161. The next prime is 12321032257. The reversal of 12321032197 is 79123012321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12054722436 + 266309761 = 109794^2 + 16319^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321032197 - 2²⁷ = 12186814469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321032137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160516098 + 6160516099.

It is an arithmetic number, because the mean of its divisors is an integer number (6160516099).

Almost surely, 2^12321032197 is an apocalyptic number.

It is an amenable number.

12321032197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321032197 is an equidigital number, since it uses as much as digits as its factorization.

12321032197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 12321032197 in words is "twelve billion, three hundred twenty-one million, thirty-two thousand, one hundred ninety-seven".