320111959 has 2 divisors, whose sum is σ = 320111960. Its totient is φ = 320111958.

The previous prime is 320111941. The next prime is 320111977. The reversal of 320111959 is 959111023.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (320111941) and next prime (320111977).

It is a cyclic number.

It is not a de Polignac number, because 320111959 - 2⁵ = 320111927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320111959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320111929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160055979 + 160055980.

It is an arithmetic number, because the mean of its divisors is an integer number (160055980).

Almost surely, 2^320111959 is an apocalyptic number.

320111959 is a deficient number, since it is larger than the sum of its proper divisors (1).

320111959 is an equidigital number, since it uses as much as digits as its factorization.

320111959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 320111959 is about 17891.6728955120. The cubic root of 320111959 is about 684.0701390349.

The spelling of 320111959 in words is "three hundred twenty million, one hundred eleven thousand, nine hundred fifty-nine".