21301163024 has 40 divisors (see below), whose sum is σ = 41731971840. Its totient is φ = 10531922688.

The previous prime is 21301162997. The next prime is 21301163041. The reversal of 21301163024 is 42036110312.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1175924 + ... + 1193900.

It is an arithmetic number, because the mean of its divisors is an integer number (1043299296).

Almost surely, 2^21301163024 is an apocalyptic number.

It is an amenable number.

21301163024 is a deficient number, since it is larger than the sum of its proper divisors (20430808816).

21301163024 is a wasteful number, since it uses less digits than its factorization.

21301163024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18807 (or 18801 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21301163024 its reverse (42036110312), we get a palindrome (63337273336).

The spelling of 21301163024 in words is "twenty-one billion, three hundred one million, one hundred sixty-three thousand, twenty-four".