20314165321 has 2 divisors, whose sum is σ = 20314165322. Its totient is φ = 20314165320.

The previous prime is 20314165273. The next prime is 20314165331. The reversal of 20314165321 is 12356141302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18312855625 + 2001309696 = 135325^2 + 44736^2 .

It is a cyclic number.

It is not a de Polignac number, because 20314165321 - 2¹⁷ = 20314034249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20314165321.

It is not a weakly prime, because it can be changed into another prime (20314165331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157082660 + 10157082661.

It is an arithmetic number, because the mean of its divisors is an integer number (10157082661).

Almost surely, 2^20314165321 is an apocalyptic number.

It is an amenable number.

20314165321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20314165321 is an equidigital number, since it uses as much as digits as its factorization.

20314165321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 20314165321 in words is "twenty billion, three hundred fourteen million, one hundred sixty-five thousand, three hundred twenty-one".