11003120211 has 4 divisors (see below), whose sum is σ = 14670826952. Its totient is φ = 7335413472.

The previous prime is 11003120209. The next prime is 11003120243. The reversal of 11003120211 is 11202130011.

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

It is not a de Polignac number, because 11003120211 - 2¹ = 11003120209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11003120311) 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, 1833853366 + ... + 1833853371.

It is an arithmetic number, because the mean of its divisors is an integer number (3667706738).

Almost surely, 2^11003120211 is an apocalyptic number.

11003120211 is a deficient number, since it is larger than the sum of its proper divisors (3667706741).

11003120211 is an equidigital number, since it uses as much as digits as its factorization.

11003120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667706740.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11003120211 its reverse (11202130011), we get a palindrome (22205250222).

The spelling of 11003120211 in words is "eleven billion, three million, one hundred twenty thousand, two hundred eleven".