1123321423 has 6 divisors (see below), whose sum is σ = 1306720896. Its totient is φ = 962846892.

The previous prime is 1123321391. The next prime is 1123321429. The reversal of 1123321423 is 3241233211.

It is not a de Polignac number, because 1123321423 - 2⁵ = 1123321391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123321394 and 1123321403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123321429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11462415 + ... + 11462512.

It is an arithmetic number, because the mean of its divisors is an integer number (217786816).

Almost surely, 2^1123321423 is an apocalyptic number.

1123321423 is a deficient number, since it is larger than the sum of its proper divisors (183399473).

1123321423 is an equidigital number, since it uses as much as digits as its factorization.

1123321423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22924941 (or 22924934 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1123321423 is about 33515.9875730971. The cubic root of 1123321423 is about 1039.5243828054.

Adding to 1123321423 its reverse (3241233211), we get a palindrome (4364554634).

The spelling of 1123321423 in words is "one billion, one hundred twenty-three million, three hundred twenty-one thousand, four hundred twenty-three".