385204111 has 2 divisors, whose sum is σ = 385204112. Its totient is φ = 385204110.

The previous prime is 385204103. The next prime is 385204117. The reversal of 385204111 is 111402583.

385204111 is nontrivially palindromic in base 5.

It is a strong prime.

It is an emirp because it is prime and its reverse (111402583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385204111 - 2³ = 385204103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385204117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192602055 + 192602056.

It is an arithmetic number, because the mean of its divisors is an integer number (192602056).

Almost surely, 2^385204111 is an apocalyptic number.

385204111 is a deficient number, since it is larger than the sum of its proper divisors (1).

385204111 is an equidigital number, since it uses as much as digits as its factorization.

385204111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 385204111 is about 19626.6174110569. The cubic root of 385204111 is about 727.6071718133.

Adding to 385204111 its reverse (111402583), we get a palindrome (496606694).

The spelling of 385204111 in words is "three hundred eighty-five million, two hundred four thousand, one hundred eleven".