30130136243 has 2 divisors, whose sum is σ = 30130136244. Its totient is φ = 30130136242.

The previous prime is 30130136203. The next prime is 30130136279. The reversal of 30130136243 is 34263103103.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30130136243 - 2¹⁰ = 30130135219 is a prime.

It is a super-2 number, since 2×30130136243² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30130136203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065068121 + 15065068122.

It is an arithmetic number, because the mean of its divisors is an integer number (15065068122).

Almost surely, 2^30130136243 is an apocalyptic number.

30130136243 is a deficient number, since it is larger than the sum of its proper divisors (1).

30130136243 is an equidigital number, since it uses as much as digits as its factorization.

30130136243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 30130136243 its reverse (34263103103), we get a palindrome (64393239346).

The spelling of 30130136243 in words is "thirty billion, one hundred thirty million, one hundred thirty-six thousand, two hundred forty-three".