238345111 has 2 divisors, whose sum is σ = 238345112. Its totient is φ = 238345110.

The previous prime is 238345109. The next prime is 238345201. The reversal of 238345111 is 111543832.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238345111 - 2¹ = 238345109 is a prime.

Together with 238345109, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 238345111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238346111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119172555 + 119172556.

It is an arithmetic number, because the mean of its divisors is an integer number (119172556).

Almost surely, 2^238345111 is an apocalyptic number.

238345111 is a deficient number, since it is larger than the sum of its proper divisors (1).

238345111 is an equidigital number, since it uses as much as digits as its factorization.

238345111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 238345111 is about 15438.4296805083. The cubic root of 238345111 is about 620.0148374874.

Adding to 238345111 its reverse (111543832), we get a palindrome (349888943).

The spelling of 238345111 in words is "two hundred thirty-eight million, three hundred forty-five thousand, one hundred eleven".