204327505231 has 2 divisors, whose sum is σ = 204327505232. Its totient is φ = 204327505230.

The previous prime is 204327505229. The next prime is 204327505253. The reversal of 204327505231 is 132505723402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204327505231 - 2¹ = 204327505229 is a prime.

It is a super-2 number, since 2×204327505231² (a number of 23 digits) contains 22 as substring.

Together with 204327505229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204327505931) 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 as a sum of consecutive naturals, namely, 102163752615 + 102163752616.

It is an arithmetic number, because the mean of its divisors is an integer number (102163752616).

Almost surely, 2^204327505231 is an apocalyptic number.

204327505231 is a deficient number, since it is larger than the sum of its proper divisors (1).

204327505231 is an equidigital number, since it uses as much as digits as its factorization.

204327505231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 204327505231 in words is "two hundred four billion, three hundred twenty-seven million, five hundred five thousand, two hundred thirty-one".