323213202120197 has 2 divisors, whose sum is σ = 323213202120198. Its totient is φ = 323213202120196.

The previous prime is 323213202120139. The next prime is 323213202120269. The reversal of 323213202120197 is 791021202312323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267806482662436 + 55406719457761 = 16364794^2 + 7443569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323213202120197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323213202120197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323213202120097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606601060098 + 161606601060099.

It is an arithmetic number, because the mean of its divisors is an integer number (161606601060099).

Almost surely, 2^{323213202120197} is an apocalyptic number.

It is an amenable number.

323213202120197 is a deficient number, since it is larger than the sum of its proper divisors (1).

323213202120197 is an equidigital number, since it uses as much as digits as its factorization.

323213202120197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 323213202120197 in words is "three hundred twenty-three trillion, two hundred thirteen billion, two hundred two million, one hundred twenty thousand, one hundred ninety-seven".