323303111000021 has 4 divisors (see below), whose sum is σ = 323350425965292. Its totient is φ = 323255796034752.

The previous prime is 323303111000011. The next prime is 323303111000029. The reversal of 323303111000021 is 120000111303323.

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 137197882922500 + 186105228077521 = 11713150^2 + 13642039^2 .

It is a cyclic number.

It is not a de Polignac number, because 323303111000021 - 2¹⁰ = 323303110998997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323303110999957 and 323303111000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323303111000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23657472386 + ... + 23657486051.

It is an arithmetic number, because the mean of its divisors is an integer number (80837606491323).

Almost surely, 2^{323303111000021} is an apocalyptic number.

It is an amenable number.

323303111000021 is a deficient number, since it is larger than the sum of its proper divisors (47314965271).

323303111000021 is an equidigital number, since it uses as much as digits as its factorization.

323303111000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47314965270.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 323303111000021 its reverse (120000111303323), we get a palindrome (443303222303344).

The spelling of 323303111000021 in words is "three hundred twenty-three trillion, three hundred three billion, one hundred eleven million, twenty-one", and thus it is an aban number.