323210111230021 has 4 divisors (see below), whose sum is σ = 323211993671052. Its totient is φ = 323208228788992.

The previous prime is 323210111230001. The next prime is 323210111230033. The reversal of 323210111230021 is 120032111012323.

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

It can be written as a sum of positive squares in 2 ways, for example, as 110014631753796 + 213195479476225 = 10488786^2 + 14601215^2 .

It is a cyclic number.

It is not a de Polignac number, because 323210111230021 - 2¹⁷ = 323210111098949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323210111229974 and 323210111230001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323210111230001) 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, 940962946 + ... + 941306371.

It is an arithmetic number, because the mean of its divisors is an integer number (80802998417763).

Almost surely, 2^{323210111230021} is an apocalyptic number.

It is an amenable number.

323210111230021 is a deficient number, since it is larger than the sum of its proper divisors (1882441031).

323210111230021 is a wasteful number, since it uses less digits than its factorization.

323210111230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882441030.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 323210111230021 its reverse (120032111012323), we get a palindrome (443242222242344).

The spelling of 323210111230021 in words is "three hundred twenty-three trillion, two hundred ten billion, one hundred eleven million, two hundred thirty thousand, twenty-one".