205314012032321 has 4 divisors (see below), whose sum is σ = 205314102972612. Its totient is φ = 205313921092032.

The previous prime is 205314012032287. The next prime is 205314012032333. The reversal of 205314012032321 is 123230210413502.

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 185240565516721 + 20073446515600 = 13610311^2 + 4480340^2 .

It is a cyclic number.

It is not a de Polignac number, because 205314012032321 - 2⁶ = 205314012032257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205314012034321) 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, 41995100 + ... + 46628493.

It is an arithmetic number, because the mean of its divisors is an integer number (51328525743153).

Almost surely, 2^{205314012032321} is an apocalyptic number.

It is an amenable number.

205314012032321 is a deficient number, since it is larger than the sum of its proper divisors (90940291).

205314012032321 is an equidigital number, since it uses as much as digits as its factorization.

205314012032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90940290.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 205314012032321 its reverse (123230210413502), we get a palindrome (328544222445823).

The spelling of 205314012032321 in words is "two hundred five trillion, three hundred fourteen billion, twelve million, thirty-two thousand, three hundred twenty-one".