321311143230029 has 2 divisors, whose sum is σ = 321311143230030. Its totient is φ = 321311143230028.

The previous prime is 321311143230013. The next prime is 321311143230071. The reversal of 321311143230029 is 920032341113123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251542042445929 + 69769100784100 = 15860077^2 + 8352790^2 .

It is a cyclic number.

It is not a de Polignac number, because 321311143230029 - 2⁴ = 321311143230013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321311143220029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160655571615014 + 160655571615015.

It is an arithmetic number, because the mean of its divisors is an integer number (160655571615015).

Almost surely, 2^{321311143230029} is an apocalyptic number.

It is an amenable number.

321311143230029 is a deficient number, since it is larger than the sum of its proper divisors (1).

321311143230029 is an equidigital number, since it uses as much as digits as its factorization.

321311143230029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 321311143230029 in words is "three hundred twenty-one trillion, three hundred eleven billion, one hundred forty-three million, two hundred thirty thousand, twenty-nine".