204353231 has 2 divisors, whose sum is σ = 204353232. Its totient is φ = 204353230.

The previous prime is 204353203. The next prime is 204353239. The reversal of 204353231 is 132353402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204353231 - 2¹⁸ = 204091087 is a prime.

It is a super-2 number, since 2×204353231² = 83520486040278722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204353197 and 204353206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204353239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102176615 + 102176616.

It is an arithmetic number, because the mean of its divisors is an integer number (102176616).

Almost surely, 2^204353231 is an apocalyptic number.

204353231 is a deficient number, since it is larger than the sum of its proper divisors (1).

204353231 is an equidigital number, since it uses as much as digits as its factorization.

204353231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 204353231 is about 14295.2170672571. The cubic root of 204353231 is about 589.0161050515.

The spelling of 204353231 in words is "two hundred four million, three hundred fifty-three thousand, two hundred thirty-one".