11215113 has 16 divisors (see below), whose sum is σ = 18404736. Its totient is φ = 5915520.

The previous prime is 11215097. The next prime is 11215117. The reversal of 11215113 is 31151211.

It is not a de Polignac number, because 11215113 - 2⁴ = 11215097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11215092 and 11215101.

It is not an unprimeable number, because it can be changed into a prime (11215117) 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, 20268 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (1150296).

Almost surely, 2^11215113 is an apocalyptic number.

11215113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11215113 is a deficient number, since it is larger than the sum of its proper divisors (7189623).

11215113 is a wasteful number, since it uses less digits than its factorization.

11215113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41104.

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

The square root of 11215113 is about 3348.8972811957. The cubic root of 11215113 is about 223.8383785780.

Adding to 11215113 its reverse (31151211), we get a palindrome (42366324).

It can be divided in two parts, 112 and 15113, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 11215113 in words is "eleven million, two hundred fifteen thousand, one hundred thirteen".