320322011 has 4 divisors (see below), whose sum is σ = 324376800. Its totient is φ = 316267224.

The previous prime is 320322001. The next prime is 320322019. The reversal of 320322011 is 110223023.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320322011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320322019) 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, 2027276 + ... + 2027433.

It is an arithmetic number, because the mean of its divisors is an integer number (81094200).

Almost surely, 2^320322011 is an apocalyptic number.

320322011 is a deficient number, since it is larger than the sum of its proper divisors (4054789).

320322011 is an equidigital number, since it uses as much as digits as its factorization.

320322011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054788.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 320322011 is about 17897.5420379448. The cubic root of 320322011 is about 684.2197313668.

Adding to 320322011 its reverse (110223023), we get a palindrome (430545034).

It can be divided in two parts, 32032 and 2011, that added together give a palindrome (34043).

The spelling of 320322011 in words is "three hundred twenty million, three hundred twenty-two thousand, eleven".