320444011 has 4 divisors (see below), whose sum is σ = 320491152. Its totient is φ = 320396872.

The previous prime is 320444009. The next prime is 320444023. The reversal of 320444011 is 110444023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320444011 - 2¹ = 320444009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320444011.

It is not an unprimeable number, because it can be changed into a prime (320444071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11215 + ... + 27688.

It is an arithmetic number, because the mean of its divisors is an integer number (80122788).

Almost surely, 2^320444011 is an apocalyptic number.

320444011 is a deficient number, since it is larger than the sum of its proper divisors (47141).

320444011 is an equidigital number, since it uses as much as digits as its factorization.

320444011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47140.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 320444011 is about 17900.9500027233. The cubic root of 320444011 is about 684.3065858538.

Adding to 320444011 its reverse (110444023), we get a palindrome (430888034).

The spelling of 320444011 in words is "three hundred twenty million, four hundred forty-four thousand, eleven".