30000110021 has 16 divisors (see below), whose sum is σ = 36245289600. Its totient is φ = 24256412928.

The previous prime is 30000110017. The next prime is 30000110033. The reversal of 30000110021 is 12001100003.

It is not a de Polignac number, because 30000110021 - 2² = 30000110017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30000109990 and 30000110008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000110051) 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 15 ways as a sum of consecutive naturals, for example, 453056 + ... + 515033.

It is an arithmetic number, because the mean of its divisors is an integer number (2265330600).

Almost surely, 2^30000110021 is an apocalyptic number.

It is an amenable number.

30000110021 is a deficient number, since it is larger than the sum of its proper divisors (6245179579).

30000110021 is a wasteful number, since it uses less digits than its factorization.

30000110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968348.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 30000110021 its reverse (12001100003), we get a palindrome (42001210024).

The spelling of 30000110021 in words is "thirty billion, one hundred ten thousand, twenty-one".