30130231 has 2 divisors, whose sum is σ = 30130232. Its totient is φ = 30130230.

The previous prime is 30130213. The next prime is 30130249. The reversal of 30130231 is 13203103.

Together with previous prime (30130213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (30130213) and next prime (30130249).

It is an emirp because it is prime and its reverse (13203103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30130231 - 2⁹ = 30129719 is a prime.

It is a super-2 number, since 2×30130231² = 1815661640226722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30130201) 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, 15065115 + 15065116.

It is an arithmetic number, because the mean of its divisors is an integer number (15065116).

Almost surely, 2^30130231 is an apocalyptic number.

30130231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30130231 is an equidigital number, since it uses as much as digits as its factorization.

30130231 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 13.

The square root of 30130231 is about 5489.1011103823. The cubic root of 30130231 is about 311.1722215509.

Adding to 30130231 its reverse (13203103), we get a palindrome (43333334).

The spelling of 30130231 in words is "thirty million, one hundred thirty thousand, two hundred thirty-one".