11071001 has 4 divisors (see below), whose sum is σ = 11083572. Its totient is φ = 11058432.

The previous prime is 11070989. The next prime is 11071003. The reversal of 11071001 is 10017011.

11071001 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 4206601 + 6864400 = 2051^2 + 2620^2 .

It is a cyclic number.

It is not a de Polignac number, because 11071001 - 2¹⁸ = 10808857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11071003) 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, 4856 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (2770893).

Almost surely, 2^11071001 is an apocalyptic number.

It is an amenable number.

11071001 is a deficient number, since it is larger than the sum of its proper divisors (12571).

11071001 is an equidigital number, since it uses as much as digits as its factorization.

11071001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12570.

The product of its (nonzero) digits is 7, while the sum is 11.

The square root of 11071001 is about 3327.3113770731. The cubic root of 11071001 is about 222.8754826451.

Adding to 11071001 its reverse (10017011), we get a palindrome (21088012).

The spelling of 11071001 in words is "eleven million, seventy-one thousand, one".