304031013 has 32 divisors (see below), whose sum is σ = 480262272. Its totient is φ = 170058240.

The previous prime is 304031011. The next prime is 304031051. The reversal of 304031013 is 310130403.

It is not a de Polignac number, because 304031013 - 2¹ = 304031011 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304030983 and 304031001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304031011) 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 31 ways as a sum of consecutive naturals, for example, 48981 + ... + 54837.

It is an arithmetic number, because the mean of its divisors is an integer number (15008196).

Almost surely, 2^304031013 is an apocalyptic number.

304031013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

304031013 is a deficient number, since it is larger than the sum of its proper divisors (176231259).

304031013 is a wasteful number, since it uses less digits than its factorization.

304031013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906 (or 5884 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 304031013 is about 17436.4851102509. The cubic root of 304031013 is about 672.4179457014.

Adding to 304031013 its reverse (310130403), we get a palindrome (614161416).

The spelling of 304031013 in words is "three hundred four million, thirty-one thousand, thirteen".