21124502024 has 32 divisors (see below), whose sum is σ = 41702688000. Its totient is φ = 10004041152.

The previous prime is 21124502023. The next prime is 21124502029. The reversal of 21124502024 is 42020542112.

It is not an unprimeable number, because it can be changed into a prime (21124502023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775337 + ... + 802119.

It is an arithmetic number, because the mean of its divisors is an integer number (1303209000).

Almost surely, 2^21124502024 is an apocalyptic number.

It is an amenable number.

21124502024 is a deficient number, since it is larger than the sum of its proper divisors (20578185976).

21124502024 is a wasteful number, since it uses less digits than its factorization.

21124502024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31997 (or 31993 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The spelling of 21124502024 in words is "twenty-one billion, one hundred twenty-four million, five hundred two thousand, twenty-four".