1112231143 has 2 divisors, whose sum is σ = 1112231144. Its totient is φ = 1112231142.

The previous prime is 1112231123. The next prime is 1112231191. The reversal of 1112231143 is 3411322111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112231143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112231143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112231123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556115571 + 556115572.

It is an arithmetic number, because the mean of its divisors is an integer number (556115572).

Almost surely, 2^1112231143 is an apocalyptic number.

1112231143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112231143 is an equidigital number, since it uses as much as digits as its factorization.

1112231143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 1112231143 is about 33350.1295799582. The cubic root of 1112231143 is about 1036.0920717280.

Adding to 1112231143 its reverse (3411322111), we get a palindrome (4523553254).

The spelling of 1112231143 in words is "one billion, one hundred twelve million, two hundred thirty-one thousand, one hundred forty-three".