320034132221 has 2 divisors, whose sum is σ = 320034132222. Its totient is φ = 320034132220.

The previous prime is 320034132203. The next prime is 320034132241. The reversal of 320034132221 is 122231430023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188907583225 + 131126548996 = 434635^2 + 362114^2 .

It is a cyclic number.

It is not a de Polignac number, because 320034132221 - 2⁶ = 320034132157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320034132241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160017066110 + 160017066111.

It is an arithmetic number, because the mean of its divisors is an integer number (160017066111).

Almost surely, 2^320034132221 is an apocalyptic number.

It is an amenable number.

320034132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

320034132221 is an equidigital number, since it uses as much as digits as its factorization.

320034132221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 320034132221 its reverse (122231430023), we get a palindrome (442265562244).

The spelling of 320034132221 in words is "three hundred twenty billion, thirty-four million, one hundred thirty-two thousand, two hundred twenty-one".