21132132102223 has 4 divisors (see below), whose sum is σ = 21132205971568. Its totient is φ = 21132058232880.

The previous prime is 21132132102127. The next prime is 21132132102251. The reversal of 21132132102223 is 32220123123112.

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 21132132102223 - 2²¹ = 21132130005071 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 (21132132102283) 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, 36503886 + ... + 37078267.

It is an arithmetic number, because the mean of its divisors is an integer number (5283051492892).

Almost surely, 2^{21132132102223} is an apocalyptic number.

21132132102223 is a deficient number, since it is larger than the sum of its proper divisors (73869345).

21132132102223 is an equidigital number, since it uses as much as digits as its factorization.

21132132102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73869344.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21132132102223 its reverse (32220123123112), we get a palindrome (53352255225335).

The spelling of 21132132102223 in words is "twenty-one trillion, one hundred thirty-two billion, one hundred thirty-two million, one hundred two thousand, two hundred twenty-three".