1123220003 has 8 divisors (see below), whose sum is σ = 1134206976. Its totient is φ = 1112286600.

The previous prime is 1123219997. The next prime is 1123220027. The reversal of 1123220003 is 3000223211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123220003 - 2¹⁴ = 1123203619 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 1123220003.

It is not an unprimeable number, because it can be changed into a prime (1123222003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29408 + ... + 55778.

It is an arithmetic number, because the mean of its divisors is an integer number (141775872).

Almost surely, 2^1123220003 is an apocalyptic number.

1123220003 is a deficient number, since it is larger than the sum of its proper divisors (10986973).

1123220003 is a wasteful number, since it uses less digits than its factorization.

1123220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26785.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1123220003 is about 33514.4745296715. The cubic root of 1123220003 is about 1039.4930970921.

Adding to 1123220003 its reverse (3000223211), we get a palindrome (4123443214).

The spelling of 1123220003 in words is "one billion, one hundred twenty-three million, two hundred twenty thousand, three".