21024443032 has 16 divisors (see below), whose sum is σ = 39422512800. Its totient is φ = 10511772960.

The previous prime is 21024442979. The next prime is 21024443047. The reversal of 21024443032 is 23034442012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21024442988 and 21024443006.

It is a congruent number.

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, 227482 + ... + 306262.

It is an arithmetic number, because the mean of its divisors is an integer number (2463907050).

Almost surely, 2^21024443032 is an apocalyptic number.

It is an amenable number.

21024443032 is a deficient number, since it is larger than the sum of its proper divisors (18398069768).

21024443032 is a wasteful number, since it uses less digits than its factorization.

21024443032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112146 (or 112142 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 21024443032 its reverse (23034442012), we get a palindrome (44058885044).

The spelling of 21024443032 in words is "twenty-one billion, twenty-four million, four hundred forty-three thousand, thirty-two".