21144305102324 has 24 divisors (see below), whose sum is σ = 37056288192000. Its totient is φ = 10556795452320.

The previous prime is 21144305102311. The next prime is 21144305102383. The reversal of 21144305102324 is 42320150344112.

It is a super-2 number, since 2×21144305102324² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73021469 + ... + 73310459.

It is an arithmetic number, because the mean of its divisors is an integer number (1544012008000).

Almost surely, 2^{21144305102324} is an apocalyptic number.

It is an amenable number.

21144305102324 is a deficient number, since it is larger than the sum of its proper divisors (15911983089676).

21144305102324 is a wasteful number, since it uses less digits than its factorization.

21144305102324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315503 (or 315501 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 21144305102324 its reverse (42320150344112), we get a palindrome (63464455446436).

The spelling of 21144305102324 in words is "twenty-one trillion, one hundred forty-four billion, three hundred five million, one hundred two thousand, three hundred twenty-four".