30132045391 has 4 divisors (see below), whose sum is σ = 34436623312. Its totient is φ = 25827467472.

The previous prime is 30132045343. The next prime is 30132045443. The reversal of 30132045391 is 19354023103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19354023103 = 29 ⋅667380107.

It is a cyclic number.

It is not a de Polignac number, because 30132045391 - 2⁷ = 30132045263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30132045331) 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 in 3 ways as a sum of consecutive naturals, for example, 2152288950 + ... + 2152288963.

It is an arithmetic number, because the mean of its divisors is an integer number (8609155828).

Almost surely, 2^30132045391 is an apocalyptic number.

30132045391 is a deficient number, since it is larger than the sum of its proper divisors (4304577921).

30132045391 is an equidigital number, since it uses as much as digits as its factorization.

30132045391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304577920.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 30132045391 its reverse (19354023103), we get a palindrome (49486068494).

The spelling of 30132045391 in words is "thirty billion, one hundred thirty-two million, forty-five thousand, three hundred ninety-one".