21023000322 has 8 divisors (see below), whose sum is σ = 42046000656. Its totient is φ = 7007666772.

The previous prime is 21023000311. The next prime is 21023000333. The reversal of 21023000322 is 22300032012.

It is an interprime number because it is at equal distance from previous prime (21023000311) and next prime (21023000333).

It is a sphenic number, since it is the product of 3 distinct primes.

21023000322 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751916688 + ... + 1751916699.

It is an arithmetic number, because the mean of its divisors is an integer number (5255750082).

Almost surely, 2^21023000322 is an apocalyptic number.

21023000322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21023000322 is a wasteful number, since it uses less digits than its factorization.

21023000322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503833392.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21023000322 its reverse (22300032012), we get a palindrome (43323032334).

The spelling of 21023000322 in words is "twenty-one billion, twenty-three million, three hundred twenty-two", and thus it is an aban number.