11115213 has 12 divisors (see below), whose sum is σ = 15116640. Its totient is φ = 7264816.

The previous prime is 11115193. The next prime is 11115227. The reversal of 11115213 is 31251111.

It is not a de Polignac number, because 11115213 - 2¹⁰ = 11114189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11115192 and 11115201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7768 + ... + 9086.

It is an arithmetic number, because the mean of its divisors is an integer number (1259720).

Almost surely, 2^11115213 is an apocalyptic number.

It is an amenable number.

11115213 is a deficient number, since it is larger than the sum of its proper divisors (4001427).

11115213 is an equidigital number, since it uses as much as digits as its factorization.

11115213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1375 counting only the distinct ones).

The product of its digits is 30, while the sum is 15.

The square root of 11115213 is about 3333.9485598911. The cubic root of 11115213 is about 223.1717727115.

Adding to 11115213 its reverse (31251111), we get a palindrome (42366324).

The spelling of 11115213 in words is "eleven million, one hundred fifteen thousand, two hundred thirteen".