204113523262321 has 4 divisors (see below), whose sum is σ = 204113568809700. Its totient is φ = 204113477714944.

The previous prime is 204113523262189. The next prime is 204113523262331. The reversal of 204113523262321 is 123262325311402.

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 79350878383921 + 124762644878400 = 8907911^2 + 11169720^2 .

It is a cyclic number.

It is not a de Polignac number, because 204113523262321 - 2³⁷ = 203976084308849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204113523262331) 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, 15215536 + ... + 25293073.

It is an arithmetic number, because the mean of its divisors is an integer number (51028392202425).

Almost surely, 2^{204113523262321} is an apocalyptic number.

It is an amenable number.

204113523262321 is a deficient number, since it is larger than the sum of its proper divisors (45547379).

204113523262321 is an equidigital number, since it uses as much as digits as its factorization.

204113523262321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45547378.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 204113523262321 its reverse (123262325311402), we get a palindrome (327375848573723).

The spelling of 204113523262321 in words is "two hundred four trillion, one hundred thirteen billion, five hundred twenty-three million, two hundred sixty-two thousand, three hundred twenty-one".