11103213 has 16 divisors (see below), whose sum is σ = 16358400. Its totient is φ = 6642480.

The previous prime is 11103199. The next prime is 11103217. The reversal of 11103213 is 31230111.

It is not a de Polignac number, because 11103213 - 2⁸ = 11102957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478 + ... + 4736.

It is an arithmetic number, because the mean of its divisors is an integer number (1022400).

Almost surely, 2^11103213 is an apocalyptic number.

It is an amenable number.

11103213 is a deficient number, since it is larger than the sum of its proper divisors (5255187).

11103213 is a wasteful number, since it uses less digits than its factorization.

11103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352.

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

The square root of 11103213 is about 3332.1484060588. The cubic root of 11103213 is about 223.0914316031.

Adding to 11103213 its reverse (31230111), we get a palindrome (42333324).

The spelling of 11103213 in words is "eleven million, one hundred three thousand, two hundred thirteen".