21323232220033 has 24 divisors (see below), whose sum is σ = 22816892179872. Its totient is φ = 19858376669184.

The previous prime is 21323232220001. The next prime is 21323232220123. The reversal of 21323232220033 is 33002223232312.

It is a happy number.

It is not a de Polignac number, because 21323232220033 - 2⁵ = 21323232220001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21323232219983 and 21323232220010.

It is not an unprimeable number, because it can be changed into a prime (21323232220333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1303128910 + ... + 1303145272.

It is an arithmetic number, because the mean of its divisors is an integer number (950703840828).

Almost surely, 2^{21323232220033} is an apocalyptic number.

It is an amenable number.

21323232220033 is a deficient number, since it is larger than the sum of its proper divisors (1493659959839).

21323232220033 is an equidigital number, since it uses as much as digits as its factorization.

21323232220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24721 (or 24624 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 21323232220033 its reverse (33002223232312), we get a palindrome (54325455452345).

The spelling of 21323232220033 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred thirty-two million, two hundred twenty thousand, thirty-three".