11013213 has 4 divisors (see below), whose sum is σ = 14684288. Its totient is φ = 7342140.

The previous prime is 11013209. The next prime is 11013227. The reversal of 11013213 is 31231011.

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 not a de Polignac number, because 11013213 - 2² = 11013209 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 (11013253) 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, 1835533 + ... + 1835538.

It is an arithmetic number, because the mean of its divisors is an integer number (3671072).

Almost surely, 2^11013213 is an apocalyptic number.

It is an amenable number.

11013213 is a deficient number, since it is larger than the sum of its proper divisors (3671075).

11013213 is an equidigital number, since it uses as much as digits as its factorization.

11013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671074.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11013213 is about 3318.6161272434. The cubic root of 11013213 is about 222.4870202419.

Adding to 11013213 its reverse (31231011), we get a palindrome (42244224).

The spelling of 11013213 in words is "eleven million, thirteen thousand, two hundred thirteen".