1111231227 has 4 divisors (see below), whose sum is σ = 1481641640. Its totient is φ = 740820816.

The previous prime is 1111231201. The next prime is 1111231229. The reversal of 1111231227 is 7221321111.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1111231227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111231229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185205202 + ... + 185205207.

It is an arithmetic number, because the mean of its divisors is an integer number (370410410).

Almost surely, 2^1111231227 is an apocalyptic number.

1111231227 is a deficient number, since it is larger than the sum of its proper divisors (370410413).

1111231227 is an equidigital number, since it uses as much as digits as its factorization.

1111231227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370410412.

The product of its digits is 168, while the sum is 21.

The square root of 1111231227 is about 33335.1350229754. The cubic root of 1111231227 is about 1035.7814901059.

Adding to 1111231227 its reverse (7221321111), we get a palindrome (8332552338).

The spelling of 1111231227 in words is "one billion, one hundred eleven million, two hundred thirty-one thousand, two hundred twenty-seven".