21132343104323 has 8 divisors (see below), whose sum is σ = 23053499256816. Its totient is φ = 19211192627200.

The previous prime is 21132343104287. The next prime is 21132343104337. The reversal of 21132343104323 is 32340134323112.

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 21132343104323 - 2¹² = 21132343100227 is a prime.

It is a super-2 number, since 2×21132343104323² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21132343104323.

It is not an unprimeable number, because it can be changed into a prime (21132343104373) 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, 11410115 + ... + 13132227.

It is an arithmetic number, because the mean of its divisors is an integer number (2881687407102).

Almost surely, 2^{21132343104323} is an apocalyptic number.

21132343104323 is a deficient number, since it is larger than the sum of its proper divisors (1921156152493).

21132343104323 is a wasteful number, since it uses less digits than its factorization.

21132343104323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837685.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 21132343104323 its reverse (32340134323112), we get a palindrome (53472477427435).

The spelling of 21132343104323 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred forty-three million, one hundred four thousand, three hundred twenty-three".