1321034234197 has 2 divisors, whose sum is σ = 1321034234198. Its totient is φ = 1321034234196.

The previous prime is 1321034234189. The next prime is 1321034234239. The reversal of 1321034234197 is 7914324301231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 974867921316 + 346166312881 = 987354^2 + 588359^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321034234197 - 2³ = 1321034234189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321034234147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660517117098 + 660517117099.

It is an arithmetic number, because the mean of its divisors is an integer number (660517117099).

Almost surely, 2^{1321034234197} is an apocalyptic number.

It is an amenable number.

1321034234197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321034234197 is an equidigital number, since it uses as much as digits as its factorization.

1321034234197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 1321034234197 in words is "one trillion, three hundred twenty-one billion, thirty-four million, two hundred thirty-four thousand, one hundred ninety-seven".