111311027 has 2 divisors, whose sum is σ = 111311028. Its totient is φ = 111311026.

The previous prime is 111311003. The next prime is 111311029. The reversal of 111311027 is 720113111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111311027 - 2⁶ = 111310963 is a prime.

Together with 111311029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 111310996 and 111311014.

It is not a weakly prime, because it can be changed into another prime (111311029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655513 + 55655514.

It is an arithmetic number, because the mean of its divisors is an integer number (55655514).

Almost surely, 2^111311027 is an apocalyptic number.

111311027 is a deficient number, since it is larger than the sum of its proper divisors (1).

111311027 is an equidigital number, since it uses as much as digits as its factorization.

111311027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 111311027 is about 10550.4041154830. The cubic root of 111311027 is about 481.0380126222.

Adding to 111311027 its reverse (720113111), we get a palindrome (831424138).

The spelling of 111311027 in words is "one hundred eleven million, three hundred eleven thousand, twenty-seven".