21300103424 has 36 divisors (see below), whose sum is σ = 42526327536. Its totient is φ = 10647716352.

The previous prime is 21300103417. The next prime is 21300103481. The reversal of 21300103424 is 42430100312.

It is a junction number, because it is equal to n+sod(n) for n = 21300103396 and 21300103405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2289887 + ... + 2299169.

It is an arithmetic number, because the mean of its divisors is an integer number (1181286876).

Almost surely, 2^21300103424 is an apocalyptic number.

It is an amenable number.

21300103424 is a deficient number, since it is larger than the sum of its proper divisors (21226224112).

21300103424 is an frugal number, since it uses more digits than its factorization.

21300103424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18262 (or 18248 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21300103424 its reverse (42430100312), we get a palindrome (63730203736).

The spelling of 21300103424 in words is "twenty-one billion, three hundred million, one hundred three thousand, four hundred twenty-four".