1123440221003 has 4 divisors (see below), whose sum is σ = 1123991199120. Its totient is φ = 1122889242888.

The previous prime is 1123440220993. The next prime is 1123440221063. The reversal of 1123440221003 is 3001220443211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123440221003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123440221003.

It is not an unprimeable number, because it can be changed into a prime (1123440221063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275486000 + ... + 275490077.

It is an arithmetic number, because the mean of its divisors is an integer number (280997799780).

Almost surely, 2^{1123440221003} is an apocalyptic number.

1123440221003 is a deficient number, since it is larger than the sum of its proper divisors (550978117).

1123440221003 is an equidigital number, since it uses as much as digits as its factorization.

1123440221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550978116.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1123440221003 its reverse (3001220443211), we get a palindrome (4124660664214).

The spelling of 1123440221003 in words is "one trillion, one hundred twenty-three billion, four hundred forty million, two hundred twenty-one thousand, three".