1000011 has 4 divisors (see below), whose sum is σ = 1333352.
Its totient is φ = 666672.
The previous prime is 1000003. The next prime is 1000033. The reversal of 1000011 is 1100001.
Adding to 1000011 its reverse (1100001), we get a palindrome (2100012).
Multipling 1000011 by its reverse (1100001), we get a palindrome (1100013100011).
It can be divided in two parts, 10000 and 11, that added together give a triangular number (10011 = T141).
1000011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 1000011 - 23 = 1000003 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (3), and also a Moran number because the ratio is a prime number: 333337 = 1000011 / (1 + 0 + 0 + 0 + 0 + 1 + 1).
It is a D-number.
It is a Duffinian number.
1000011 is a modest number, since divided by 11 gives 1 as remainder.
It is not an unprimeable number, because it can be changed into a prime (1000081) 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, 166666 + ... + 166671.
It is an arithmetic number, because the mean of its divisors is an integer number (333338).
21000011 is an apocalyptic number.
1000011 is a deficient number, since it is larger than the sum of its proper divisors (333341).
1000011 is an equidigital number, since it uses as much as digits as its factorization.
1000011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333340.
The product of its (nonzero) digits is 1, while the sum is 3.
The square root of 1000011 is about 1000.0054999849.
The cubic root of 1000011 is about 100.0003666653.
Note that the first 3 decimals are identical.
The spelling of 1000011 in words is "one million, eleven", and thus it is an aban number and an uban number.