21330330130 has 8 divisors (see below), whose sum is σ = 38394594252. Its totient is φ = 8532132048.

The previous prime is 21330330113. The next prime is 21330330139. The reversal of 21330330130 is 3103303312.

It can be written as a sum of positive squares in 2 ways, for example, as 20694836449 + 635493681 = 143857^2 + 25209^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21330330098 and 21330330107.

It is not an unprimeable number, because it can be changed into a prime (21330330139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066516497 + ... + 1066516516.

Almost surely, 2^21330330130 is an apocalyptic number.

21330330130 is a deficient number, since it is larger than the sum of its proper divisors (17064264122).

21330330130 is a wasteful number, since it uses less digits than its factorization.

21330330130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133033020.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 21330330130 its reverse (3103303312), we get a palindrome (24433633442).

The spelling of 21330330130 in words is "twenty-one billion, three hundred thirty million, three hundred thirty thousand, one hundred thirty".