11312115 has 16 divisors (see below), whose sum is σ = 18144000. Its totient is φ = 6018272.

The previous prime is 11312111. The next prime is 11312177. The reversal of 11312115 is 51121311.

It is a cyclic number.

It is not a de Polignac number, because 11312115 - 2² = 11312111 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 = 11312094 and 11312103.

It is not an unprimeable number, because it can be changed into a prime (11312111) 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, 8356 + ... + 9614.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^11312115 is an apocalyptic number.

11312115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11312115 is a deficient number, since it is larger than the sum of its proper divisors (6831885).

11312115 is a wasteful number, since it uses less digits than its factorization.

11312115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

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

The square root of 11312115 is about 3363.3487776322. The cubic root of 11312115 is about 224.4818694922.

Adding to 11312115 its reverse (51121311), we get a palindrome (62433426).

The spelling of 11312115 in words is "eleven million, three hundred twelve thousand, one hundred fifteen".