2085071321 has 2 divisors, whose sum is σ = 2085071322. Its totient is φ = 2085071320.

The previous prime is 2085071291. The next prime is 2085071341. The reversal of 2085071321 is 1231705802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084926921 + 144400 = 45661^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085071321 - 2³⁰ = 1011329497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2085071341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042535660 + 1042535661.

It is an arithmetic number, because the mean of its divisors is an integer number (1042535661).

Almost surely, 2^2085071321 is an apocalyptic number.

It is an amenable number.

2085071321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085071321 is an equidigital number, since it uses as much as digits as its factorization.

2085071321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2085071321 is about 45662.5811907299. The cubic root of 2085071321 is about 1277.5374449651.

The spelling of 2085071321 in words is "two billion, eighty-five million, seventy-one thousand, three hundred twenty-one".