11213115 has 16 divisors (see below), whose sum is σ = 18996768. Its totient is φ = 5628416.

The previous prime is 11213113. The next prime is 11213117. The reversal of 11213115 is 51131211.

It is an interprime number because it is at equal distance from previous prime (11213113) and next prime (11213117).

It is a cyclic number.

It is not a de Polignac number, because 11213115 - 2¹ = 11213113 is a prime.

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

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11213094 and 11213103.

It is not an unprimeable number, because it can be changed into a prime (11213113) 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 15 ways as a sum of consecutive naturals, for example, 21732 + ... + 22241.

It is an arithmetic number, because the mean of its divisors is an integer number (1187298).

Almost surely, 2^11213115 is an apocalyptic number.

11213115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11213115 is a deficient number, since it is larger than the sum of its proper divisors (7783653).

11213115 is a wasteful number, since it uses less digits than its factorization.

11213115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43998.

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

The square root of 11213115 is about 3348.5989607596. The cubic root of 11213115 is about 223.8250853357.

Adding to 11213115 its reverse (51131211), we get a palindrome (62344326).

The spelling of 11213115 in words is "eleven million, two hundred thirteen thousand, one hundred fifteen".