321110032189 has 2 divisors, whose sum is σ = 321110032190. Its totient is φ = 321110032188.

The previous prime is 321110032097. The next prime is 321110032193. The reversal of 321110032189 is 981230011123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228252706564 + 92857325625 = 477758^2 + 304725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321110032189 is a prime.

It is a super-2 number, since 2×321110032189² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321110032189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321110035189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160555016094 + 160555016095.

It is an arithmetic number, because the mean of its divisors is an integer number (160555016095).

Almost surely, 2^321110032189 is an apocalyptic number.

It is an amenable number.

321110032189 is a deficient number, since it is larger than the sum of its proper divisors (1).

321110032189 is an equidigital number, since it uses as much as digits as its factorization.

321110032189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 321110032189 in words is "three hundred twenty-one billion, one hundred ten million, thirty-two thousand, one hundred eighty-nine".