11324400421 has 4 divisors (see below), whose sum is σ = 11345103712. Its totient is φ = 11303697132.

The previous prime is 11324400403. The next prime is 11324400431. The reversal of 11324400421 is 12400442311.

It is a happy number.

11324400421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 11324400421 - 2¹³ = 11324392229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11324400392 and 11324400401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11324400401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10350825 + ... + 10351918.

It is an arithmetic number, because the mean of its divisors is an integer number (2836275928).

Almost surely, 2^11324400421 is an apocalyptic number.

It is an amenable number.

11324400421 is a deficient number, since it is larger than the sum of its proper divisors (20703291).

11324400421 is an equidigital number, since it uses as much as digits as its factorization.

11324400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20703290.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11324400421 its reverse (12400442311), we get a palindrome (23724842732).

The spelling of 11324400421 in words is "eleven billion, three hundred twenty-four million, four hundred thousand, four hundred twenty-one".