230270728013 has 4 divisors (see below), whose sum is σ = 230599217628. Its totient is φ = 229942238400.

The previous prime is 230270727983. The next prime is 230270728169. The reversal of 230270728013 is 310827072032.

It is a happy number.

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 184902580009 + 45368148004 = 430003^2 + 212998^2 .

It is a cyclic number.

It is not a de Polignac number, because 230270728013 - 2⁶ = 230270727949 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 (230270728613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164243756 + ... + 164245157.

It is an arithmetic number, because the mean of its divisors is an integer number (57649804407).

Almost surely, 2^230270728013 is an apocalyptic number.

It is an amenable number.

230270728013 is a deficient number, since it is larger than the sum of its proper divisors (328489615).

230270728013 is an equidigital number, since it uses as much as digits as its factorization.

230270728013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328489614.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 230270728013 in words is "two hundred thirty billion, two hundred seventy million, seven hundred twenty-eight thousand, thirteen".