2160085321 has 2 divisors, whose sum is σ = 2160085322. Its totient is φ = 2160085320.

The previous prime is 2160085309. The next prime is 2160085391. The reversal of 2160085321 is 1235800612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1203049225 + 957036096 = 34685^2 + 30936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2160085321 - 2⁹ = 2160084809 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 2160085321.

It is not a weakly prime, because it can be changed into another prime (2160085391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080042660 + 1080042661.

It is an arithmetic number, because the mean of its divisors is an integer number (1080042661).

Almost surely, 2^2160085321 is an apocalyptic number.

It is an amenable number.

2160085321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160085321 is an equidigital number, since it uses as much as digits as its factorization.

2160085321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2160085321 is about 46476.7180532361. The cubic root of 2160085321 is about 1292.6778340286.

Adding to 2160085321 its reverse (1235800612), we get a palindrome (3395885933).

The spelling of 2160085321 in words is "two billion, one hundred sixty million, eighty-five thousand, three hundred twenty-one".