11113215 has 16 divisors (see below), whose sum is σ = 17884800. Its totient is φ = 5892512.

The previous prime is 11113213. The next prime is 11113237. The reversal of 11113215 is 51231111.

It is a cyclic number.

It is not a de Polignac number, because 11113215 - 2¹ = 11113213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 11113194 and 11113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113213) 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, 616 + ... + 4754.

It is an arithmetic number, because the mean of its divisors is an integer number (1117800).

Almost surely, 2^11113215 is an apocalyptic number.

11113215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11113215 is a deficient number, since it is larger than the sum of its proper divisors (6771585).

11113215 is a wasteful number, since it uses less digits than its factorization.

11113215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326.

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

The square root of 11113215 is about 3333.6489017292. The cubic root of 11113215 is about 223.1583999307.

Adding to 11113215 its reverse (51231111), we get a palindrome (62344326).

The spelling of 11113215 in words is "eleven million, one hundred thirteen thousand, two hundred fifteen".