321189223697 has 2 divisors, whose sum is σ = 321189223698. Its totient is φ = 321189223696.

The previous prime is 321189223681. The next prime is 321189223703. The reversal of 321189223697 is 796322981123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209982981121 + 111206242576 = 458239^2 + 333476^2 .

It is a cyclic number.

It is not a de Polignac number, because 321189223697 - 2⁴ = 321189223681 is a prime.

It is not a weakly prime, because it can be changed into another prime (321189223627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160594611848 + 160594611849.

It is an arithmetic number, because the mean of its divisors is an integer number (160594611849).

Almost surely, 2^321189223697 is an apocalyptic number.

It is an amenable number.

321189223697 is a deficient number, since it is larger than the sum of its proper divisors (1).

321189223697 is an equidigital number, since it uses as much as digits as its factorization.

321189223697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The spelling of 321189223697 in words is "three hundred twenty-one billion, one hundred eighty-nine million, two hundred twenty-three thousand, six hundred ninety-seven".