11112287 has 2 divisors, whose sum is σ = 11112288. Its totient is φ = 11112286.

The previous prime is 11112263. The next prime is 11112317. The reversal of 11112287 is 78221111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11112287 - 2¹⁸ = 10850143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556143 + 5556144.

It is an arithmetic number, because the mean of its divisors is an integer number (5556144).

Almost surely, 2^11112287 is an apocalyptic number.

11112287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112287 is an equidigital number, since it uses as much as digits as its factorization.

11112287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 23.

The square root of 11112287 is about 3333.5097120003. The cubic root of 11112287 is about 223.1521882041.

Adding to 11112287 its reverse (78221111), we get a palindrome (89333398).

The spelling of 11112287 in words is "eleven million, one hundred twelve thousand, two hundred eighty-seven".