11340021 has 24 divisors (see below), whose sum is σ = 19190304. Its totient is φ = 5890080.

The previous prime is 11339987. The next prime is 11340023. The reversal of 11340021 is 12004311.

It is a happy number.

11340021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11340021 - 2¹¹ = 11337973 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11339979 and 11340006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11340023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1890 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (799596).

Almost surely, 2^11340021 is an apocalyptic number.

11340021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11340021 is a deficient number, since it is larger than the sum of its proper divisors (7850283).

11340021 is a wasteful number, since it uses less digits than its factorization.

11340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7041 (or 7034 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11340021 is about 3367.4947661429. The cubic root of 11340021 is about 224.6663102993. Note that the first 3 decimals are identical.

Adding to 11340021 its reverse (12004311), we get a palindrome (23344332).

The spelling of 11340021 in words is "eleven million, three hundred forty thousand, twenty-one".