21132233323 has 4 divisors (see below), whose sum is σ = 21132605808. Its totient is φ = 21131860840.

The previous prime is 21132233267. The next prime is 21132233383. The reversal of 21132233323 is 32333223112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21132233323 - 2²⁵ = 21098678891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21132233383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81511 + ... + 221152.

It is an arithmetic number, because the mean of its divisors is an integer number (5283151452).

Almost surely, 2^21132233323 is an apocalyptic number.

21132233323 is a deficient number, since it is larger than the sum of its proper divisors (372485).

21132233323 is an equidigital number, since it uses as much as digits as its factorization.

21132233323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372484.

The product of its digits is 3888, while the sum is 25.

Adding to 21132233323 its reverse (32333223112), we get a palindrome (53465456435).

The spelling of 21132233323 in words is "twenty-one billion, one hundred thirty-two million, two hundred thirty-three thousand, three hundred twenty-three".