30120132013 has 4 divisors (see below), whose sum is σ = 30322280700. Its totient is φ = 29917983328.

The previous prime is 30120131971. The next prime is 30120132017. The reversal of 30120132013 is 31023102103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 948516804 + 29171615209 = 30798^2 + 170797^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120132013 - 2²¹ = 30118034861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120132017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101074120 + ... + 101074417.

It is an arithmetic number, because the mean of its divisors is an integer number (7580570175).

Almost surely, 2^30120132013 is an apocalyptic number.

It is an amenable number.

30120132013 is a deficient number, since it is larger than the sum of its proper divisors (202148687).

30120132013 is a wasteful number, since it uses less digits than its factorization.

30120132013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202148686.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30120132013 its reverse (31023102103), we get a palindrome (61143234116).

The spelling of 30120132013 in words is "thirty billion, one hundred twenty million, one hundred thirty-two thousand, thirteen".