111312315 has 12 divisors (see below), whose sum is σ = 192941424. Its totient is φ = 59366544.

The previous prime is 111312307. The next prime is 111312361. The reversal of 111312315 is 513213111.

It is not a de Polignac number, because 111312315 - 2³ = 111312307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1236759 + ... + 1236848.

It is an arithmetic number, because the mean of its divisors is an integer number (16078452).

Almost surely, 2^111312315 is an apocalyptic number.

111312315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111312315 is a deficient number, since it is larger than the sum of its proper divisors (81629109).

111312315 is a wasteful number, since it uses less digits than its factorization.

111312315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473618 (or 2473615 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 111312315 is about 10550.4651556223. The cubic root of 111312315 is about 481.0398680076.

Adding to 111312315 its reverse (513213111), we get a palindrome (624525426).

The spelling of 111312315 in words is "one hundred eleven million, three hundred twelve thousand, three hundred fifteen".