21103414430 has 32 divisors (see below), whose sum is σ = 43655293440. Its totient is φ = 7195030560.

The previous prime is 21103414429. The next prime is 21103414441. The reversal of 21103414430 is 3441430112.

It is a junction number, because it is equal to n+sod(n) for n = 21103414396 and 21103414405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829586 + ... + 854645.

It is an arithmetic number, because the mean of its divisors is an integer number (1364227920).

Almost surely, 2^21103414430 is an apocalyptic number.

21103414430 is an abundant number, since it is smaller than the sum of its proper divisors (22551879010).

21103414430 is a wasteful number, since it uses less digits than its factorization.

21103414430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684424.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21103414430 its reverse (3441430112), we get a palindrome (24544844542).

The spelling of 21103414430 in words is "twenty-one billion, one hundred three million, four hundred fourteen thousand, four hundred thirty".