1123320003 has 16 divisors (see below), whose sum is σ = 1650485760. Its totient is φ = 675196704.

The previous prime is 1123319983. The next prime is 1123320007. The reversal of 1123320003 is 3000233211.

It is not a de Polignac number, because 1123320003 - 2⁵ = 1123319971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123320007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333243 + ... + 336596.

It is an arithmetic number, because the mean of its divisors is an integer number (103155360).

Almost surely, 2^1123320003 is an apocalyptic number.

1123320003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1123320003 is a deficient number, since it is larger than the sum of its proper divisors (527165757).

1123320003 is a wasteful number, since it uses less digits than its factorization.

1123320003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669898.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1123320003 is about 33515.9663891704. The cubic root of 1123320003 is about 1039.5239447814.

Adding to 1123320003 its reverse (3000233211), we get a palindrome (4123553214).

The spelling of 1123320003 in words is "one billion, one hundred twenty-three million, three hundred twenty thousand, three".