21244341532 has 12 divisors (see below), whose sum is σ = 37318959216. Its totient is φ = 10581781760.

The previous prime is 21244341527. The next prime is 21244341539. The reversal of 21244341532 is 23514344212.

It is a junction number, because it is equal to n+sod(n) for n = 21244341494 and 21244341503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21244341539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10096069 + ... + 10098172.

It is an arithmetic number, because the mean of its divisors is an integer number (3109913268).

Almost surely, 2^21244341532 is an apocalyptic number.

It is an amenable number.

21244341532 is a deficient number, since it is larger than the sum of its proper divisors (16074617684).

21244341532 is a wasteful number, since it uses less digits than its factorization.

21244341532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20194508 (or 20194506 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

Adding to 21244341532 its reverse (23514344212), we get a palindrome (44758685744).

The spelling of 21244341532 in words is "twenty-one billion, two hundred forty-four million, three hundred forty-one thousand, five hundred thirty-two".