320330121 has 4 divisors (see below), whose sum is σ = 427106832. Its totient is φ = 213553412.

The previous prime is 320330119. The next prime is 320330141. The reversal of 320330121 is 121033023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320330121 - 2¹ = 320330119 is a prime.

It is a super-2 number, since 2×320330121² = 205222772839749282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320330121.

It is not an unprimeable number, because it can be changed into a prime (320330141) 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, 53388351 + ... + 53388356.

It is an arithmetic number, because the mean of its divisors is an integer number (106776708).

Almost surely, 2^320330121 is an apocalyptic number.

It is an amenable number.

320330121 is a deficient number, since it is larger than the sum of its proper divisors (106776711).

320330121 is a wasteful number, since it uses less digits than its factorization.

320330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106776710.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 320330121 is about 17897.7686039350. The cubic root of 320330121 is about 684.2255057386.

Adding to 320330121 its reverse (121033023), we get a palindrome (441363144).

The spelling of 320330121 in words is "three hundred twenty million, three hundred thirty thousand, one hundred twenty-one".