11010001 has 4 divisors (see below), whose sum is σ = 11038132. Its totient is φ = 10981872.

The previous prime is 11009989. The next prime is 11010007. The reversal of 11010001 is 10001011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 6275025 = 2176^2 + 2505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11010007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13470 + ... + 14263.

It is an arithmetic number, because the mean of its divisors is an integer number (2759533).

Almost surely, 2^11010001 is an apocalyptic number.

It is an amenable number.

11010001 is a deficient number, since it is larger than the sum of its proper divisors (28131).

11010001 is an equidigital number, since it uses as much as digits as its factorization.

11010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28130.

The product of its (nonzero) digits is 1, while the sum is 4.

The square root of 11010001 is about 3318.1321552946. The cubic root of 11010001 is about 222.4653887163.

Adding to 11010001 its reverse (10001011), we get a palindrome (21011012).

Multiplying 11010001 by its reverse (10001011), we get a palindrome (110111141111011).

The spelling of 11010001 in words is "eleven million, ten thousand, one".