21322310023 has 8 divisors (see below), whose sum is σ = 24394258080. Its totient is φ = 18256837920.

The previous prime is 21322310003. The next prime is 21322310029. The reversal of 21322310023 is 32001322312.

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

It is a cyclic number.

It is not a de Polignac number, because 21322310023 - 2¹³ = 21322301831 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 (21322310029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611928 + ... + 1625101.

It is an arithmetic number, because the mean of its divisors is an integer number (3049282260).

Almost surely, 2^21322310023 is an apocalyptic number.

21322310023 is a deficient number, since it is larger than the sum of its proper divisors (3071948057).

21322310023 is an equidigital number, since it uses as much as digits as its factorization.

21322310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237977.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21322310023 its reverse (32001322312), we get a palindrome (53323632335).

The spelling of 21322310023 in words is "twenty-one billion, three hundred twenty-two million, three hundred ten thousand, twenty-three".