230730013 has 4 divisors (see below), whose sum is σ = 230780988. Its totient is φ = 230679040.

The previous prime is 230729981. The next prime is 230730029. The reversal of 230730013 is 310037032.

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 144648729 + 86081284 = 12027^2 + 9278^2 .

It is a cyclic number.

It is not a de Polignac number, because 230730013 - 2⁵ = 230729981 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 (230731013) 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, 17956 + ... + 27997.

It is an arithmetic number, because the mean of its divisors is an integer number (57695247).

Almost surely, 2^230730013 is an apocalyptic number.

It is an amenable number.

230730013 is a deficient number, since it is larger than the sum of its proper divisors (50975).

230730013 is an equidigital number, since it uses as much as digits as its factorization.

230730013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50974.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 230730013 is about 15189.7996365982. The cubic root of 230730013 is about 613.3401054375.

Adding to 230730013 its reverse (310037032), we get a palindrome (540767045).

The spelling of 230730013 in words is "two hundred thirty million, seven hundred thirty thousand, thirteen".