204111343 has 2 divisors, whose sum is σ = 204111344. Its totient is φ = 204111342.

The previous prime is 204111337. The next prime is 204111379. The reversal of 204111343 is 343111402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204111343 - 2⁹ = 204110831 is a prime.

It is a super-2 number, since 2×204111343² = 83322880682527298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204111343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204111143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102055671 + 102055672.

It is an arithmetic number, because the mean of its divisors is an integer number (102055672).

Almost surely, 2^204111343 is an apocalyptic number.

204111343 is a deficient number, since it is larger than the sum of its proper divisors (1).

204111343 is an equidigital number, since it uses as much as digits as its factorization.

204111343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 204111343 is about 14286.7541100139. The cubic root of 204111343 is about 588.7836119006.

Adding to 204111343 its reverse (343111402), we get a palindrome (547222745).

The spelling of 204111343 in words is "two hundred four million, one hundred eleven thousand, three hundred forty-three".