320010121 has 2 divisors, whose sum is σ = 320010122. Its totient is φ = 320010120.

The previous prime is 320010073. The next prime is 320010127. The reversal of 320010121 is 121010023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194323600 + 125686521 = 13940^2 + 11211^2 .

It is a cyclic number.

It is not a de Polignac number, because 320010121 - 2¹⁹ = 319485833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 320010098 and 320010107.

It is not a weakly prime, because it can be changed into another prime (320010127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160005060 + 160005061.

It is an arithmetic number, because the mean of its divisors is an integer number (160005061).

Almost surely, 2^320010121 is an apocalyptic number.

It is an amenable number.

320010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

320010121 is an equidigital number, since it uses as much as digits as its factorization.

320010121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 320010121 is about 17888.8267083115. The cubic root of 320010121 is about 683.9975897057.

Adding to 320010121 its reverse (121010023), we get a palindrome (441020144).

The spelling of 320010121 in words is "three hundred twenty million, ten thousand, one hundred twenty-one".