204042263 has 2 divisors, whose sum is σ = 204042264. Its totient is φ = 204042262.

The previous prime is 204042233. The next prime is 204042271. The reversal of 204042263 is 362240402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204042263 - 2¹⁸ = 203780119 is a prime.

It is a super-2 number, since 2×204042263² = 83266490180322338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204042203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102021131 + 102021132.

It is an arithmetic number, because the mean of its divisors is an integer number (102021132).

Almost surely, 2^204042263 is an apocalyptic number.

204042263 is a deficient number, since it is larger than the sum of its proper divisors (1).

204042263 is an equidigital number, since it uses as much as digits as its factorization.

204042263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 204042263 is about 14284.3362813958. The cubic root of 204042263 is about 588.7171812281.

Adding to 204042263 its reverse (362240402), we get a palindrome (566282665).

The spelling of 204042263 in words is "two hundred four million, forty-two thousand, two hundred sixty-three".