11003002001 has 4 divisors (see below), whose sum is σ = 11008322100. Its totient is φ = 10997681904.

The previous prime is 11003001991. The next prime is 11003002009. The reversal of 11003002001 is 10020030011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10020030011 = 5689 ⋅1761299.

It can be written as a sum of positive squares in 2 ways, for example, as 4429035601 + 6573966400 = 66551^2 + 81080^2 .

It is a cyclic number.

It is not a de Polignac number, because 11003002001 - 2⁶ = 11003001937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11003002001.

It is not an unprimeable number, because it can be changed into a prime (11003002009) 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, 2656946 + ... + 2661083.

It is an arithmetic number, because the mean of its divisors is an integer number (2752080525).

Almost surely, 2^11003002001 is an apocalyptic number.

It is an amenable number.

11003002001 is a deficient number, since it is larger than the sum of its proper divisors (5320099).

11003002001 is an equidigital number, since it uses as much as digits as its factorization.

11003002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320098.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 11003002001 its reverse (10020030011), we get a palindrome (21023032012).

The spelling of 11003002001 in words is "eleven billion, three million, two thousand, one".