11312018 has 8 divisors (see below), whose sum is σ = 17006220. Its totient is φ = 5643280.

The previous prime is 11312009. The next prime is 11312033. The reversal of 11312018 is 81021311.

11312018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10936249 + 375769 = 3307^2 + 613^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11311987 and 11312005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5213 + ... + 7056.

Almost surely, 2^11312018 is an apocalyptic number.

11312018 is a deficient number, since it is larger than the sum of its proper divisors (5694202).

11312018 is a wasteful number, since it uses less digits than its factorization.

11312018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12732.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 11312018 is about 3363.3343574495. The cubic root of 11312018 is about 224.4812278555.

Adding to 11312018 its reverse (81021311), we get a palindrome (92333329).

The spelling of 11312018 in words is "eleven million, three hundred twelve thousand, eighteen".