1120312243 has 2 divisors, whose sum is σ = 1120312244. Its totient is φ = 1120312242.

The previous prime is 1120312213. The next prime is 1120312343. The reversal of 1120312243 is 3422130211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120312243 - 2⁵ = 1120312211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120312243.

It is not a weakly prime, because it can be changed into another prime (1120312213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560156121 + 560156122.

It is an arithmetic number, because the mean of its divisors is an integer number (560156122).

Almost surely, 2^1120312243 is an apocalyptic number.

1120312243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120312243 is an equidigital number, since it uses as much as digits as its factorization.

1120312243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1120312243 is about 33471.0657583531. The cubic root of 1120312243 is about 1038.5953185423.

Adding to 1120312243 its reverse (3422130211), we get a palindrome (4542442454).

The spelling of 1120312243 in words is "one billion, one hundred twenty million, three hundred twelve thousand, two hundred forty-three".