323000021021 has 4 divisors (see below), whose sum is σ = 323084513472. Its totient is φ = 322915528572.

The previous prime is 323000021017. The next prime is 323000021059. The reversal of 323000021021 is 120120000323.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120120000323 = 401 ⋅299551123.

It is a cyclic number.

It is not a de Polignac number, because 323000021021 - 2² = 323000021017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323000020987 and 323000021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323000021521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42240491 + ... + 42248136.

It is an arithmetic number, because the mean of its divisors is an integer number (80771128368).

Almost surely, 2^323000021021 is an apocalyptic number.

It is an amenable number.

323000021021 is a deficient number, since it is larger than the sum of its proper divisors (84492451).

323000021021 is an equidigital number, since it uses as much as digits as its factorization.

323000021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84492450.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 323000021021 its reverse (120120000323), we get a palindrome (443120021344).

The spelling of 323000021021 in words is "three hundred twenty-three billion, twenty-one thousand, twenty-one".