21332034623 has 8 divisors (see below), whose sum is σ = 21375538800. Its totient is φ = 21288572928.

The previous prime is 21332034599. The next prime is 21332034671. The reversal of 21332034623 is 32643023312.

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 21332034623 - 2¹⁸ = 21331772479 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 (21332034923) 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, 1112465 + ... + 1131477.

It is an arithmetic number, because the mean of its divisors is an integer number (2671942350).

Almost surely, 2^21332034623 is an apocalyptic number.

21332034623 is a deficient number, since it is larger than the sum of its proper divisors (43504177).

21332034623 is a wasteful number, since it uses less digits than its factorization.

21332034623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21241.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21332034623 its reverse (32643023312), we get a palindrome (53975057935).

The spelling of 21332034623 in words is "twenty-one billion, three hundred thirty-two million, thirty-four thousand, six hundred twenty-three".