11213321 has 8 divisors (see below), whose sum is σ = 13007040. Its totient is φ = 9467568.

The previous prime is 11213303. The next prime is 11213347. The reversal of 11213321 is 12331211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11213296 and 11213305.

It is not an unprimeable number, because it can be changed into a prime (11213381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11486 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (1625880).

Almost surely, 2^11213321 is an apocalyptic number.

It is an amenable number.

11213321 is a deficient number, since it is larger than the sum of its proper divisors (1793719).

11213321 is an equidigital number, since it uses as much as digits as its factorization.

11213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23983.

The product of its digits is 36, while the sum is 14.

The square root of 11213321 is about 3348.6297197511. The cubic root of 11213321 is about 223.8264559833.

Adding to 11213321 its reverse (12331211), we get a palindrome (23544532).

The spelling of 11213321 in words is "eleven million, two hundred thirteen thousand, three hundred twenty-one".