321111211093 has 2 divisors, whose sum is σ = 321111211094. Its totient is φ = 321111211092.

The previous prime is 321111211087. The next prime is 321111211111. The reversal of 321111211093 is 390112111123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168869217969 + 152241993124 = 410937^2 + 390182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321111211093 is a prime.

It is a super-2 number, since 2×321111211093² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321111211013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160555605546 + 160555605547.

It is an arithmetic number, because the mean of its divisors is an integer number (160555605547).

Almost surely, 2^321111211093 is an apocalyptic number.

It is an amenable number.

321111211093 is a deficient number, since it is larger than the sum of its proper divisors (1).

321111211093 is an equidigital number, since it uses as much as digits as its factorization.

321111211093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 321111211093 in words is "three hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, ninety-three".