11011003001 has 4 divisors (see below), whose sum is σ = 11084902500. Its totient is φ = 10937103504.

The previous prime is 11011002983. The next prime is 11011003007. The reversal of 11011003001 is 10030011011.

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 3442872976 + 7568130025 = 58676^2 + 86995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011003001 is a prime.

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 11011003001.

It is not an unprimeable number, because it can be changed into a prime (11011003007) 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, 36949526 + ... + 36949823.

It is an arithmetic number, because the mean of its divisors is an integer number (2771225625).

Almost surely, 2^11011003001 is an apocalyptic number.

It is an amenable number.

11011003001 is a deficient number, since it is larger than the sum of its proper divisors (73899499).

11011003001 is an equidigital number, since it uses as much as digits as its factorization.

11011003001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73899498.

The product of its (nonzero) digits is 3, while the sum is 8.

Adding to 11011003001 its reverse (10030011011), we get a palindrome (21041014012).

The spelling of 11011003001 in words is "eleven billion, eleven million, three thousand, one".