11340421 has 4 divisors (see below), whose sum is σ = 11731500. Its totient is φ = 10949344.

The previous prime is 11340419. The next prime is 11340457. The reversal of 11340421 is 12404311.

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 5239521 + 6100900 = 2289^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 11340421 - 2¹ = 11340419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11340395 and 11340404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11340401) 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, 195496 + ... + 195553.

It is an arithmetic number, because the mean of its divisors is an integer number (2932875).

Almost surely, 2^11340421 is an apocalyptic number.

It is an amenable number.

11340421 is a deficient number, since it is larger than the sum of its proper divisors (391079).

11340421 is an equidigital number, since it uses as much as digits as its factorization.

11340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391078.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11340421 is about 3367.5541569513. The cubic root of 11340421 is about 224.6689518425.

Adding to 11340421 its reverse (12404311), we get a palindrome (23744732).

The spelling of 11340421 in words is "eleven million, three hundred forty thousand, four hundred twenty-one".