1123231303 has 4 divisors (see below), whose sum is σ = 1182348760. Its totient is φ = 1064113848.

The previous prime is 1123231297. The next prime is 1123231331. The reversal of 1123231303 is 3031323211.

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

It is not a de Polignac number, because 1123231303 - 2⁵ = 1123231271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 59117437 = 1123231303 / (1 + 1 + 2 + 3 + 2 + 3 + 1 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123234303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29558700 + ... + 29558737.

It is an arithmetic number, because the mean of its divisors is an integer number (295587190).

Almost surely, 2^1123231303 is an apocalyptic number.

1123231303 is a deficient number, since it is larger than the sum of its proper divisors (59117457).

1123231303 is an equidigital number, since it uses as much as digits as its factorization.

1123231303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59117456.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1123231303 is about 33514.6431131230. The cubic root of 1123231303 is about 1039.4965829728.

Adding to 1123231303 its reverse (3031323211), we get a palindrome (4154554514).

The spelling of 1123231303 in words is "one billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred three".