21300330121 has 8 divisors (see below), whose sum is σ = 24346255680. Its totient is φ = 18255159888.

The previous prime is 21300330119. The next prime is 21300330131. The reversal of 21300330121 is 12103300312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21300330121 - 2¹ = 21300330119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21300330095 and 21300330104.

It is not an unprimeable number, because it can be changed into a prime (21300330131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 127051 + ... + 242368.

It is an arithmetic number, because the mean of its divisors is an integer number (3043281960).

Almost surely, 2^21300330121 is an apocalyptic number.

It is an amenable number.

21300330121 is a deficient number, since it is larger than the sum of its proper divisors (3045925559).

21300330121 is an equidigital number, since it uses as much as digits as its factorization.

21300330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377663.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21300330121 its reverse (12103300312), we get a palindrome (33403630433).

The spelling of 21300330121 in words is "twenty-one billion, three hundred million, three hundred thirty thousand, one hundred twenty-one".