204700231 has 2 divisors, whose sum is σ = 204700232. Its totient is φ = 204700230.

The previous prime is 204700219. The next prime is 204700259. The reversal of 204700231 is 132007402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204700231 is a prime.

It is a super-2 number, since 2×204700231² = 83804369142906722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 204700199 and 204700208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204700261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102350115 + 102350116.

It is an arithmetic number, because the mean of its divisors is an integer number (102350116).

Almost surely, 2^204700231 is an apocalyptic number.

204700231 is a deficient number, since it is larger than the sum of its proper divisors (1).

204700231 is an equidigital number, since it uses as much as digits as its factorization.

204700231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 204700231 is about 14307.3488459602. The cubic root of 204700231 is about 589.3493075326.

Adding to 204700231 its reverse (132007402), we get a palindrome (336707633).

The spelling of 204700231 in words is "two hundred four million, seven hundred thousand, two hundred thirty-one".