21124243002332 has 12 divisors (see below), whose sum is σ = 37573448619336. Its totient is φ = 10388971968240.

The previous prime is 21124243002311. The next prime is 21124243002337. The reversal of 21124243002332 is 23320034242112.

It is a junction number, because it is equal to n+sod(n) for n = 21124243002295 and 21124243002304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21124243002337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43287382958 + ... + 43287383445.

It is an arithmetic number, because the mean of its divisors is an integer number (3131120718278).

Almost surely, 2^{21124243002332} is an apocalyptic number.

It is an amenable number.

21124243002332 is a deficient number, since it is larger than the sum of its proper divisors (16449205617004).

21124243002332 is a wasteful number, since it uses less digits than its factorization.

21124243002332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86574766468 (or 86574766466 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 21124243002332 its reverse (23320034242112), we get a palindrome (44444277244444).

The spelling of 21124243002332 in words is "twenty-one trillion, one hundred twenty-four billion, two hundred forty-three million, two thousand, three hundred thirty-two".