11324023021 has 4 divisors (see below), whose sum is σ = 11816371872. Its totient is φ = 10831674172.

The previous prime is 11324023001. The next prime is 11324023027. The reversal of 11324023021 is 12032042311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12032042311 = 331 ⋅36350581.

It is a cyclic number.

It is not a de Polignac number, because 11324023021 - 2⁵ = 11324022989 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 11324023021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11324023027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246174391 + ... + 246174436.

It is an arithmetic number, because the mean of its divisors is an integer number (2954092968).

Almost surely, 2^11324023021 is an apocalyptic number.

It is an amenable number.

11324023021 is a deficient number, since it is larger than the sum of its proper divisors (492348851).

11324023021 is an equidigital number, since it uses as much as digits as its factorization.

11324023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492348850.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11324023021 its reverse (12032042311), we get a palindrome (23356065332).

The spelling of 11324023021 in words is "eleven billion, three hundred twenty-four million, twenty-three thousand, twenty-one".