11324023421 has 4 divisors (see below), whose sum is σ = 11325313692. Its totient is φ = 11322733152.

The previous prime is 11324023397. The next prime is 11324023429. The reversal of 11324023421 is 12432042311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11322024025 + 1999396 = 106405^2 + 1414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11324023421 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 (11324023429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631880 + ... + 649553.

It is an arithmetic number, because the mean of its divisors is an integer number (2831328423).

Almost surely, 2^11324023421 is an apocalyptic number.

It is an amenable number.

11324023421 is a deficient number, since it is larger than the sum of its proper divisors (1290271).

11324023421 is an equidigital number, since it uses as much as digits as its factorization.

11324023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290270.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11324023421 its reverse (12432042311), we get a palindrome (23756065732).

The spelling of 11324023421 in words is "eleven billion, three hundred twenty-four million, twenty-three thousand, four hundred twenty-one".