30330121021 has 8 divisors (see below), whose sum is σ = 31933205600. Its totient is φ = 28727712720.

The previous prime is 30330121007. The next prime is 30330121027. The reversal of 30330121021 is 12012103303.

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

It is not a de Polignac number, because 30330121021 - 2⁷ = 30330120893 is a prime.

It is a super-2 number, since 2×30330121021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30330120986 and 30330121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30330121027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75675 + ... + 257656.

It is an arithmetic number, because the mean of its divisors is an integer number (3991650700).

Almost surely, 2^30330121021 is an apocalyptic number.

It is an amenable number.

30330121021 is a deficient number, since it is larger than the sum of its proper divisors (1603084579).

30330121021 is a wasteful number, since it uses less digits than its factorization.

30330121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338139.

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

Adding to 30330121021 its reverse (12012103303), we get a palindrome (42342224324).

The spelling of 30330121021 in words is "thirty billion, three hundred thirty million, one hundred twenty-one thousand, twenty-one".