21000032023323 has 8 divisors (see below), whose sum is σ = 28965561411600. Its totient is φ = 13517261991968.

The previous prime is 21000032023301. The next prime is 21000032023337. The reversal of 21000032023323 is 32332023000012.

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 21000032023323 - 2²⁴ = 21000015246107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21000032023323.

It is not an unprimeable number, because it can be changed into a prime (21000032023393) 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, 120689839128 + ... + 120689839301.

It is an arithmetic number, because the mean of its divisors is an integer number (3620695176450).

Almost surely, 2^{21000032023323} is an apocalyptic number.

21000032023323 is a deficient number, since it is larger than the sum of its proper divisors (7965529388277).

21000032023323 is a wasteful number, since it uses less digits than its factorization.

21000032023323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241379678461.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21000032023323 its reverse (32332023000012), we get a palindrome (53332055023335).

The spelling of 21000032023323 in words is "twenty-one trillion, thirty-two million, twenty-three thousand, three hundred twenty-three".