21141343532 has 12 divisors (see below), whose sum is σ = 37054538640. Its totient is φ = 10554332496.

The previous prime is 21141343519. The next prime is 21141343549. The reversal of 21141343532 is 23534314112.

It is a junction number, because it is equal to n+sod(n) for n = 21141343495 and 21141343504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4081907 + ... + 4087082.

It is an arithmetic number, because the mean of its divisors is an integer number (3087878220).

Almost surely, 2^21141343532 is an apocalyptic number.

It is an amenable number.

21141343532 is a deficient number, since it is larger than the sum of its proper divisors (15913195108).

21141343532 is a wasteful number, since it uses less digits than its factorization.

21141343532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169640 (or 8169638 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

Adding to 21141343532 its reverse (23534314112), we get a palindrome (44675657644).

The spelling of 21141343532 in words is "twenty-one billion, one hundred forty-one million, three hundred forty-three thousand, five hundred thirty-two".