30120131 has 2 divisors, whose sum is σ = 30120132. Its totient is φ = 30120130.

The previous prime is 30120113. The next prime is 30120137. The reversal of 30120131 is 13102103.

Together with previous prime (30120113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30120131 - 2¹⁰ = 30119107 is a prime.

It is a super-2 number, since 2×30120131² = 1814444582914322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30120137) 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, 15060065 + 15060066.

It is an arithmetic number, because the mean of its divisors is an integer number (15060066).

Almost surely, 2^30120131 is an apocalyptic number.

30120131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120131 is an equidigital number, since it uses as much as digits as its factorization.

30120131 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 30120131 is about 5488.1810283554. The cubic root of 30120131 is about 311.1374481625.

Adding to 30120131 its reverse (13102103), we get a palindrome (43222234).

The spelling of 30120131 in words is "thirty million, one hundred twenty thousand, one hundred thirty-one".