320033332121 has 4 divisors (see below), whose sum is σ = 326071696932. Its totient is φ = 313994967312.

The previous prime is 320033332117. The next prime is 320033332139. The reversal of 320033332121 is 121233330023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121233330023 = 13 ⋅9325640771.

It can be written as a sum of positive squares in 2 ways, for example, as 265492867600 + 54540464521 = 515260^2 + 233539^2 .

It is a cyclic number.

It is not a de Polignac number, because 320033332121 - 2² = 320033332117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320033332181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3019182326 + ... + 3019182431.

It is an arithmetic number, because the mean of its divisors is an integer number (81517924233).

Almost surely, 2^320033332121 is an apocalyptic number.

It is an amenable number.

320033332121 is a deficient number, since it is larger than the sum of its proper divisors (6038364811).

320033332121 is an equidigital number, since it uses as much as digits as its factorization.

320033332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6038364810.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 320033332121 its reverse (121233330023), we get a palindrome (441266662144).

The spelling of 320033332121 in words is "three hundred twenty billion, thirty-three million, three hundred thirty-two thousand, one hundred twenty-one".