320321411 has 4 divisors (see below), whose sum is σ = 320445072. Its totient is φ = 320197752.

The previous prime is 320321389. The next prime is 320321447. The reversal of 320321411 is 114123023.

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 320321411 - 2¹⁰ = 320320387 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 320321411.

It is not an unprimeable number, because it can be changed into a prime (320321011) 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, 57860 + ... + 63153.

It is an arithmetic number, because the mean of its divisors is an integer number (80111268).

Almost surely, 2^320321411 is an apocalyptic number.

320321411 is a deficient number, since it is larger than the sum of its proper divisors (123661).

320321411 is a wasteful number, since it uses less digits than its factorization.

320321411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123660.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 320321411 is about 17897.5252758587. The cubic root of 320321411 is about 684.2193041591.

Adding to 320321411 its reverse (114123023), we get a palindrome (434444434).

The spelling of 320321411 in words is "three hundred twenty million, three hundred twenty-one thousand, four hundred eleven".