205230234032513 has 4 divisors (see below), whose sum is σ = 210003030172848. Its totient is φ = 200457437892180.

The previous prime is 205230234032459. The next prime is 205230234032533. The reversal of 205230234032513 is 315230432032502.

205230234032513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205230234032513 - 2¹⁸ = 205230233770369 is a prime.

It is a super-2 number, since 2×205230234032513² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205230234032533) 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, 2386398070103 + ... + 2386398070188.

It is an arithmetic number, because the mean of its divisors is an integer number (52500757543212).

Almost surely, 2^{205230234032513} is an apocalyptic number.

It is an amenable number.

205230234032513 is a deficient number, since it is larger than the sum of its proper divisors (4772796140335).

205230234032513 is an equidigital number, since it uses as much as digits as its factorization.

205230234032513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772796140334.

The product of its (nonzero) digits is 129600, while the sum is 35.

The spelling of 205230234032513 in words is "two hundred five trillion, two hundred thirty billion, two hundred thirty-four million, thirty-two thousand, five hundred thirteen".