21024330316 has 36 divisors (see below), whose sum is σ = 40759984384. Its totient is φ = 9481237920.

The previous prime is 21024330311. The next prime is 21024330317. The reversal of 21024330316 is 61303342012.

It is not an unprimeable number, because it can be changed into a prime (21024330311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109551 + ... + 232486.

Almost surely, 2^21024330316 is an apocalyptic number.

It is an amenable number.

21024330316 is a deficient number, since it is larger than the sum of its proper divisors (19735654068).

21024330316 is a wasteful number, since it uses less digits than its factorization.

21024330316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342190 (or 342177 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21024330316 its reverse (61303342012), we get a palindrome (82327672328).

The spelling of 21024330316 in words is "twenty-one billion, twenty-four million, three hundred thirty thousand, three hundred sixteen".