238111123 has 2 divisors, whose sum is σ = 238111124. Its totient is φ = 238111122.

The previous prime is 238111117. The next prime is 238111127. The reversal of 238111123 is 321111832.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238111123 - 2⁵ = 238111091 is a prime.

It is a super-2 number, since 2×238111123² = 113393813792642258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238111094 and 238111103.

It is not a weakly prime, because it can be changed into another prime (238111127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119055561 + 119055562.

It is an arithmetic number, because the mean of its divisors is an integer number (119055562).

Almost surely, 2^238111123 is an apocalyptic number.

238111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

238111123 is an equidigital number, since it uses as much as digits as its factorization.

238111123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 238111123 is about 15430.8497173681. The cubic root of 238111123 is about 619.8118775418.

Adding to 238111123 its reverse (321111832), we get a palindrome (559222955).

The spelling of 238111123 in words is "two hundred thirty-eight million, one hundred eleven thousand, one hundred twenty-three".