11321423 has 4 divisors (see below), whose sum is σ = 11448720. Its totient is φ = 11194128.

The previous prime is 11321399. The next prime is 11321437. The reversal of 11321423 is 32412311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63515 + ... + 63692.

It is an arithmetic number, because the mean of its divisors is an integer number (2862180).

Almost surely, 2^11321423 is an apocalyptic number.

11321423 is a deficient number, since it is larger than the sum of its proper divisors (127297).

11321423 is an equidigital number, since it uses as much as digits as its factorization.

11321423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127296.

The product of its digits is 144, while the sum is 17.

The square root of 11321423 is about 3364.7322330313. The cubic root of 11321423 is about 224.5434230980.

Adding to 11321423 its reverse (32412311), we get a palindrome (43733734).

The spelling of 11321423 in words is "eleven million, three hundred twenty-one thousand, four hundred twenty-three".