111123377 has 2 divisors, whose sum is σ = 111123378. Its totient is φ = 111123376.

The previous prime is 111123367. The next prime is 111123403. The reversal of 111123377 is 773321111.

It is an a-pointer prime, because the next prime (111123403) can be obtained adding 111123377 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105596176 + 5527201 = 10276^2 + 2351^2 .

It is a cyclic number.

It is not a de Polignac number, because 111123377 - 2⁸ = 111123121 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (111123317) 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, 55561688 + 55561689.

It is an arithmetic number, because the mean of its divisors is an integer number (55561689).

Almost surely, 2^111123377 is an apocalyptic number.

It is an amenable number.

111123377 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123377 is an equidigital number, since it uses as much as digits as its factorization.

111123377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882, while the sum is 26.

The square root of 111123377 is about 10541.5073400344. The cubic root of 111123377 is about 480.7675465912.

Adding to 111123377 its reverse (773321111), we get a palindrome (884444488).

The spelling of 111123377 in words is "one hundred eleven million, one hundred twenty-three thousand, three hundred seventy-seven".