30109313 has 4 divisors (see below), whose sum is σ = 32425428. Its totient is φ = 27793200.

The previous prime is 30109309. The next prime is 30109327. The reversal of 30109313 is 31390103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31390103 = 67 ⋅468509.

It can be written as a sum of positive squares in 2 ways, for example, as 16507969 + 13601344 = 4063^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 30109313 - 2² = 30109309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30109333) 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, 1158038 + ... + 1158063.

It is an arithmetic number, because the mean of its divisors is an integer number (8106357).

Almost surely, 2^30109313 is an apocalyptic number.

It is an amenable number.

30109313 is a deficient number, since it is larger than the sum of its proper divisors (2316115).

30109313 is a wasteful number, since it uses less digits than its factorization.

30109313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316114.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 30109313 is about 5487.1953673985. The cubic root of 30109313 is about 311.1001941417.

Adding to 30109313 its reverse (31390103), we get a palindrome (61499416).

The spelling of 30109313 in words is "thirty million, one hundred nine thousand, three hundred thirteen".