321232061173 has 2 divisors, whose sum is σ = 321232061174. Its totient is φ = 321232061172.

The previous prime is 321232061159. The next prime is 321232061179. The reversal of 321232061173 is 371160232123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317575077444 + 3656983729 = 563538^2 + 60473^2 .

It is a cyclic number.

It is not a de Polignac number, because 321232061173 - 2⁵ = 321232061141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321232061179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160616030586 + 160616030587.

It is an arithmetic number, because the mean of its divisors is an integer number (160616030587).

Almost surely, 2^321232061173 is an apocalyptic number.

It is an amenable number.

321232061173 is a deficient number, since it is larger than the sum of its proper divisors (1).

321232061173 is an equidigital number, since it uses as much as digits as its factorization.

321232061173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 321232061173 its reverse (371160232123), we get a palindrome (692392293296).

The spelling of 321232061173 in words is "three hundred twenty-one billion, two hundred thirty-two million, sixty-one thousand, one hundred seventy-three".