21344110132 has 24 divisors (see below), whose sum is σ = 38274231240. Its totient is φ = 10408765440.

The previous prime is 21344110121. The next prime is 21344110133. The reversal of 21344110132 is 23101144312.

It can be written as a sum of positive squares in 4 ways, for example, as 1661703696 + 19682406436 = 40764^2 + 140294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21344110133) 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, 619044 + ... + 652612.

It is an arithmetic number, because the mean of its divisors is an integer number (1594759635).

Almost surely, 2^21344110132 is an apocalyptic number.

It is an amenable number.

21344110132 is a deficient number, since it is larger than the sum of its proper divisors (16930121108).

21344110132 is a wasteful number, since it uses less digits than its factorization.

21344110132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37491 (or 37489 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21344110132 its reverse (23101144312), we get a palindrome (44445254444).

The spelling of 21344110132 in words is "twenty-one billion, three hundred forty-four million, one hundred ten thousand, one hundred thirty-two".