21120330130 has 8 divisors (see below), whose sum is σ = 38016594252. Its totient is φ = 8448132048.

The previous prime is 21120330113. The next prime is 21120330131. The reversal of 21120330130 is 3103302112.

It can be written as a sum of positive squares in 2 ways, for example, as 20526579441 + 593750689 = 143271^2 + 24367^2 .

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

It is a super-3 number, since 3×21120330130³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21120330131) 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 3 ways as a sum of consecutive naturals, for example, 1056016497 + ... + 1056016516.

Almost surely, 2^21120330130 is an apocalyptic number.

21120330130 is a deficient number, since it is larger than the sum of its proper divisors (16896264122).

21120330130 is a wasteful number, since it uses less digits than its factorization.

21120330130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112033020.

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

Adding to 21120330130 its reverse (3103302112), we get a palindrome (24223632242).

The spelling of 21120330130 in words is "twenty-one billion, one hundred twenty million, three hundred thirty thousand, one hundred thirty".