111112273 has 2 divisors, whose sum is σ = 111112274. Its totient is φ = 111112272.

The previous prime is 111112237. The next prime is 111112283. The reversal of 111112273 is 372211111.

Together with previous prime (111112237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76160529 + 34951744 = 8727^2 + 5912^2 .

It is an emirp because it is prime and its reverse (372211111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111112273 is a prime.

It is a super-2 number, since 2×111112273² = 24691874422453058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111112273.

It is not a weakly prime, because it can be changed into another prime (111112283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556136 + 55556137.

It is an arithmetic number, because the mean of its divisors is an integer number (55556137).

Almost surely, 2^111112273 is an apocalyptic number.

It is an amenable number.

111112273 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112273 is an equidigital number, since it uses as much as digits as its factorization.

111112273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 19.

The square root of 111112273 is about 10540.9806469797. The cubic root of 111112273 is about 480.7515324970.

Adding to 111112273 its reverse (372211111), we get a palindrome (483323384).

The spelling of 111112273 in words is "one hundred eleven million, one hundred twelve thousand, two hundred seventy-three".