1122443243 has 4 divisors (see below), whose sum is σ = 1122598848. Its totient is φ = 1122287640.

The previous prime is 1122443219. The next prime is 1122443251. The reversal of 1122443243 is 3423442211.

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

It is a cyclic number.

It is not a de Polignac number, because 1122443243 - 2¹² = 1122439147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122443213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66428 + ... + 81593.

It is an arithmetic number, because the mean of its divisors is an integer number (280649712).

Almost surely, 2^1122443243 is an apocalyptic number.

1122443243 is a deficient number, since it is larger than the sum of its proper divisors (155605).

1122443243 is an equidigital number, since it uses as much as digits as its factorization.

1122443243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155604.

The product of its digits is 4608, while the sum is 26.

The square root of 1122443243 is about 33502.8840997309. The cubic root of 1122443243 is about 1039.2534222126.

Adding to 1122443243 its reverse (3423442211), we get a palindrome (4545885454).

The spelling of 1122443243 in words is "one billion, one hundred twenty-two million, four hundred forty-three thousand, two hundred forty-three".