320323113251 has 2 divisors, whose sum is σ = 320323113252. Its totient is φ = 320323113250.

The previous prime is 320323113233. The next prime is 320323113259. The reversal of 320323113251 is 152311323023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320323113251 - 2¹⁰ = 320323112227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320323113251.

It is not a weakly prime, because it can be changed into another prime (320323113259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160161556625 + 160161556626.

It is an arithmetic number, because the mean of its divisors is an integer number (160161556626).

Almost surely, 2^320323113251 is an apocalyptic number.

320323113251 is a deficient number, since it is larger than the sum of its proper divisors (1).

320323113251 is an equidigital number, since it uses as much as digits as its factorization.

320323113251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 320323113251 its reverse (152311323023), we get a palindrome (472634436274).

The spelling of 320323113251 in words is "three hundred twenty billion, three hundred twenty-three million, one hundred thirteen thousand, two hundred fifty-one".