30120113 has 2 divisors, whose sum is σ = 30120114. Its totient is φ = 30120112.

The previous prime is 30120061. The next prime is 30120131. The reversal of 30120113 is 31102103.

Together with next prime (30120131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20584369 + 9535744 = 4537^2 + 3088^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120113 - 2¹⁸ = 29857969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30120094 and 30120103.

It is not a weakly prime, because it can be changed into another prime (30120173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060056 + 15060057.

It is an arithmetic number, because the mean of its divisors is an integer number (15060057).

Almost surely, 2^30120113 is an apocalyptic number.

It is an amenable number.

30120113 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120113 is an equidigital number, since it uses as much as digits as its factorization.

30120113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 30120113 is about 5488.1793884675. The cubic root of 30120113 is about 311.1373861832.

Adding to 30120113 its reverse (31102103), we get a palindrome (61222216).

The spelling of 30120113 in words is "thirty million, one hundred twenty thousand, one hundred thirteen".