323120021197 has 2 divisors, whose sum is σ = 323120021198. Its totient is φ = 323120021196.

The previous prime is 323120021177. The next prime is 323120021321. The reversal of 323120021197 is 791120021323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247042797156 + 76077224041 = 497034^2 + 275821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323120021197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323120021117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161560010598 + 161560010599.

It is an arithmetic number, because the mean of its divisors is an integer number (161560010599).

Almost surely, 2^323120021197 is an apocalyptic number.

It is an amenable number.

323120021197 is a deficient number, since it is larger than the sum of its proper divisors (1).

323120021197 is an equidigital number, since it uses as much as digits as its factorization.

323120021197 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 323120021197 in words is "three hundred twenty-three billion, one hundred twenty million, twenty-one thousand, one hundred ninety-seven".