111431114 has 4 divisors (see below), whose sum is σ = 167146674. Its totient is φ = 55715556.

The previous prime is 111431077. The next prime is 111431129. The reversal of 111431114 is 411134111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 411134111 = 5419 ⋅75869.

It can be written as a sum of positive squares in only one way, i.e., 110986225 + 444889 = 10535^2 + 667^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111431092 and 111431101.

It is an unprimeable number.

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, 27857777 + ... + 27857780.

Almost surely, 2^111431114 is an apocalyptic number.

111431114 is a deficient number, since it is larger than the sum of its proper divisors (55715560).

111431114 is an equidigital number, since it uses as much as digits as its factorization.

111431114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55715559.

The product of its digits is 48, while the sum is 17.

The square root of 111431114 is about 10556.0936903762. The cubic root of 111431114 is about 481.2109384386.

Adding to 111431114 its reverse (411134111), we get a palindrome (522565225).

The spelling of 111431114 in words is "one hundred eleven million, four hundred thirty-one thousand, one hundred fourteen".