30110330021 has 2 divisors, whose sum is σ = 30110330022. Its totient is φ = 30110330020.

The previous prime is 30110329967. The next prime is 30110330023. The reversal of 30110330021 is 12003301103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20474748100 + 9635581921 = 143090^2 + 98161^2 .

It is an emirp because it is prime and its reverse (12003301103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30110330021 - 2³⁰ = 29036588197 is a prime.

Together with 30110330023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30110329978 and 30110330005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30110330023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15055165010 + 15055165011.

It is an arithmetic number, because the mean of its divisors is an integer number (15055165011).

Almost surely, 2^30110330021 is an apocalyptic number.

It is an amenable number.

30110330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30110330021 is an equidigital number, since it uses as much as digits as its factorization.

30110330021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 30110330021 its reverse (12003301103), we get a palindrome (42113631124).

The spelling of 30110330021 in words is "thirty billion, one hundred ten million, three hundred thirty thousand, twenty-one".