352020355321 has 2 divisors, whose sum is σ = 352020355322. Its totient is φ = 352020355320.

The previous prime is 352020355307. The next prime is 352020355331. The reversal of 352020355321 is 123553020253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221077695721 + 130942659600 = 470189^2 + 361860^2 .

It is a cyclic number.

It is not a de Polignac number, because 352020355321 - 2¹⁵ = 352020322553 is a prime.

It is not a weakly prime, because it can be changed into another prime (352020355301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176010177660 + 176010177661.

It is an arithmetic number, because the mean of its divisors is an integer number (176010177661).

Almost surely, 2^352020355321 is an apocalyptic number.

It is an amenable number.

352020355321 is a deficient number, since it is larger than the sum of its proper divisors (1).

352020355321 is an equidigital number, since it uses as much as digits as its factorization.

352020355321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 352020355321 its reverse (123553020253), we get a palindrome (475573375574).

The spelling of 352020355321 in words is "three hundred fifty-two billion, twenty million, three hundred fifty-five thousand, three hundred twenty-one".