1123304321 has 8 divisors (see below), whose sum is σ = 1140519744. Its totient is φ = 1106176720.

The previous prime is 1123304317. The next prime is 1123304323. The reversal of 1123304321 is 1234033211.

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 1123304321 - 2² = 1123304317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1123304293 and 1123304302.

It is not an unprimeable number, because it can be changed into a prime (1123304323) 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, 4055 + ... + 47571.

It is an arithmetic number, because the mean of its divisors is an integer number (142564968).

Almost surely, 2^1123304321 is an apocalyptic number.

It is an amenable number.

1123304321 is a deficient number, since it is larger than the sum of its proper divisors (17215423).

1123304321 is an equidigital number, since it uses as much as digits as its factorization.

1123304321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43911.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1123304321 is about 33515.7324401541. The cubic root of 1123304321 is about 1039.5191073678.

Adding to 1123304321 its reverse (1234033211), we get a palindrome (2357337532).

The spelling of 1123304321 in words is "one billion, one hundred twenty-three million, three hundred four thousand, three hundred twenty-one".