204120347 has 2 divisors, whose sum is σ = 204120348. Its totient is φ = 204120346.

The previous prime is 204120313. The next prime is 204120361. The reversal of 204120347 is 743021402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204120347 - 2⁶ = 204120283 is a prime.

It is not a weakly prime, because it can be changed into another prime (204120047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102060173 + 102060174.

It is an arithmetic number, because the mean of its divisors is an integer number (102060174).

Almost surely, 2^204120347 is an apocalyptic number.

204120347 is a deficient number, since it is larger than the sum of its proper divisors (1).

204120347 is an equidigital number, since it uses as much as digits as its factorization.

204120347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 204120347 is about 14287.0692236022. The cubic root of 204120347 is about 588.7922694787.

Adding to 204120347 its reverse (743021402), we get a palindrome (947141749).

The spelling of 204120347 in words is "two hundred four million, one hundred twenty thousand, three hundred forty-seven".