230203321013 has 4 divisors (see below), whose sum is σ = 230345335788. Its totient is φ = 230061306240.

The previous prime is 230203320983. The next prime is 230203321039. The reversal of 230203321013 is 310123302032.

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 185607595684 + 44595725329 = 430822^2 + 211177^2 .

It is a cyclic number.

It is not a de Polignac number, because 230203321013 - 2¹⁰ = 230203319989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230203321913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71004956 + ... + 71008197.

It is an arithmetic number, because the mean of its divisors is an integer number (57586333947).

Almost surely, 2^230203321013 is an apocalyptic number.

It is an amenable number.

230203321013 is a deficient number, since it is larger than the sum of its proper divisors (142014775).

230203321013 is a wasteful number, since it uses less digits than its factorization.

230203321013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142014774.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 230203321013 its reverse (310123302032), we get a palindrome (540326623045).

The spelling of 230203321013 in words is "two hundred thirty billion, two hundred three million, three hundred twenty-one thousand, thirteen".