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11000001 = 38294423

11000001 has 8 divisors (see below), whose sum is σ = 14687680. Its totient is φ = 7322832.

The previous prime is 10999997. The next prime is 11000027. The reversal of 11000001 is 10000011.

Adding to 11000001 its reverse (10000011), we get a palindrome (21000012).

Multipling 11000001 by its reverse (10000011), we get a palindrome (110000131000011).

11000001 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11000001 - 22 = 10999997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (3).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11000001.

It is not an unprimeable number, because it can be changed into a prime (11000081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276 + ... + 4698.

It is an arithmetic number, because the mean of its divisors is an integer number (1835960).

Almost surely, 211000001 is an apocalyptic number.

It is an amenable number.

11000001 is a deficient number, since it is larger than the sum of its proper divisors (3687679).

11000001 is an equidigital number, since it uses as much as digits as its factorization.

11000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255.

The product of its (nonzero) digits is 1, while the sum is 3.

The square root of 11000001 is about 3316.6249411111. The cubic root of 11000001 is about 222.3980157963.

The spelling of 11000001 in words is "eleven million, one", and thus it is an aban number and an uban number.

Divisors: 1 3 829 2487 4423 13269 3666667 11000001