320204011 has 4 divisors (see below), whose sum is σ = 320242024. Its totient is φ = 320166000.

The previous prime is 320203981. The next prime is 320204039. The reversal of 320204011 is 110402023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 110402023 = 4357 ⋅25339.

It is a cyclic number.

It is not a de Polignac number, because 320204011 - 2²⁵ = 286649579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320203982 and 320204000.

It is not an unprimeable number, because it can be changed into a prime (320204041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105 + ... + 25306.

It is an arithmetic number, because the mean of its divisors is an integer number (80060506).

Almost surely, 2^320204011 is an apocalyptic number.

320204011 is a deficient number, since it is larger than the sum of its proper divisors (38013).

320204011 is a wasteful number, since it uses less digits than its factorization.

320204011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38012.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 320204011 is about 17894.2451922399. The cubic root of 320204011 is about 684.1357035847.

Adding to 320204011 its reverse (110402023), we get a palindrome (430606034).

The spelling of 320204011 in words is "three hundred twenty million, two hundred four thousand, eleven".