21010502241430 has 24 divisors (see below), whose sum is σ = 40951830999312. Its totient is φ = 7757723903904.

The previous prime is 21010502241403. The next prime is 21010502241473. The reversal of 21010502241430 is 3414220501012.

It is a junction number, because it is equal to n+sod(n) for n = 21010502241395 and 21010502241404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6216123234 + ... + 6216126613.

It is an arithmetic number, because the mean of its divisors is an integer number (1706326291638).

Almost surely, 2^{21010502241430} is an apocalyptic number.

21010502241430 is a deficient number, since it is larger than the sum of its proper divisors (19941328757882).

21010502241430 is a wasteful number, since it uses less digits than its factorization.

21010502241430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432249880 (or 12432249867 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 21010502241430 its reverse (3414220501012), we get a palindrome (24424722742442).

The spelling of 21010502241430 in words is "twenty-one trillion, ten billion, five hundred two million, two hundred forty-one thousand, four hundred thirty".