1123213323 has 4 divisors (see below), whose sum is σ = 1497617768. Its totient is φ = 748808880.

The previous prime is 1123213319. The next prime is 1123213361. The reversal of 1123213323 is 3233123211.

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

It is not a de Polignac number, because 1123213323 - 2² = 1123213319 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 1123213323.

It is not an unprimeable number, because it can be changed into a prime (1123213373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187202218 + ... + 187202223.

It is an arithmetic number, because the mean of its divisors is an integer number (374404442).

Almost surely, 2^1123213323 is an apocalyptic number.

1123213323 is a deficient number, since it is larger than the sum of its proper divisors (374404445).

1123213323 is an equidigital number, since it uses as much as digits as its factorization.

1123213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374404444.

The product of its digits is 648, while the sum is 21.

The square root of 1123213323 is about 33514.3748710908. The cubic root of 1123213323 is about 1039.4910364012.

Adding to 1123213323 its reverse (3233123211), we get a palindrome (4356336534).

The spelling of 1123213323 in words is "one billion, one hundred twenty-three million, two hundred thirteen thousand, three hundred twenty-three".