11123403321 has 8 divisors (see below), whose sum is σ = 14975197120. Its totient is φ = 7343605872.

The previous prime is 11123403311. The next prime is 11123403323. The reversal of 11123403321 is 12330432111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11123403321 - 2⁵ = 11123403289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11123403323) 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, 17998726 + ... + 17999343.

It is an arithmetic number, because the mean of its divisors is an integer number (1871899640).

Almost surely, 2^11123403321 is an apocalyptic number.

It is an amenable number.

11123403321 is a deficient number, since it is larger than the sum of its proper divisors (3851793799).

11123403321 is a wasteful number, since it uses less digits than its factorization.

11123403321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35998175.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11123403321 its reverse (12330432111), we get a palindrome (23453835432).

The spelling of 11123403321 in words is "eleven billion, one hundred twenty-three million, four hundred three thousand, three hundred twenty-one".