2018011 has 4 divisors (see below), whose sum is σ = 2022192. Its totient is φ = 2013832.

The previous prime is 2017991. The next prime is 2018021. The reversal of 2018011 is 1108102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1108102 = 2 ⋅554051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2018011 is a prime.

It is a super-2 number, since 2×2018011² = 8144736792242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2017982 and 2018000.

It is not an unprimeable number, because it can be changed into a prime (2018021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255 + ... + 2368.

It is an arithmetic number, because the mean of its divisors is an integer number (505548).

2^2018011 is an apocalyptic number.

2018011 is a deficient number, since it is larger than the sum of its proper divisors (4181).

2018011 is an equidigital number, since it uses as much as digits as its factorization.

2018011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2018011 is about 1420.5671402648. The cubic root of 2018011 is about 126.3691826209.

Subtracting from 2018011 its reverse (1108102), we obtain a palindrome (909909).

The spelling of 2018011 in words is "two million, eighteen thousand, eleven".