323120132332021 has 4 divisors (see below), whose sum is σ = 323821043682444. Its totient is φ = 322419220981600.

The previous prime is 323120132332009. The next prime is 323120132332033. The reversal of 323120132332021 is 120233231021323.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (323120132332009) and next prime (323120132332033).

It can be written as a sum of positive squares in 2 ways, for example, as 248477686080625 + 74642446251396 = 15763175^2 + 8639586^2 .

It is a cyclic number.

It is not a de Polignac number, because 323120132332021 - 2¹⁷ = 323120132200949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323120132339021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350455674520 + ... + 350455675441.

It is an arithmetic number, because the mean of its divisors is an integer number (80955260920611).

Almost surely, 2^{323120132332021} is an apocalyptic number.

It is an amenable number.

323120132332021 is a deficient number, since it is larger than the sum of its proper divisors (700911350423).

323120132332021 is an equidigital number, since it uses as much as digits as its factorization.

323120132332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700911350422.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 323120132332021 its reverse (120233231021323), we get a palindrome (443353363353344).

The spelling of 323120132332021 in words is "three hundred twenty-three trillion, one hundred twenty billion, one hundred thirty-two million, three hundred thirty-two thousand, twenty-one".