11223103211 has 4 divisors (see below), whose sum is σ = 11610106800. Its totient is φ = 10836099624.

The previous prime is 11223103193. The next prime is 11223103223. The reversal of 11223103211 is 11230132211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11230132211 = 53 ⋅211889287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223103211 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 11223103211.

It is not an unprimeable number, because it can be changed into a prime (11223103291) 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, 193501751 + ... + 193501808.

It is an arithmetic number, because the mean of its divisors is an integer number (2902526700).

Almost surely, 2^11223103211 is an apocalyptic number.

11223103211 is a deficient number, since it is larger than the sum of its proper divisors (387003589).

11223103211 is an equidigital number, since it uses as much as digits as its factorization.

11223103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387003588.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11223103211 its reverse (11230132211), we get a palindrome (22453235422).

The spelling of 11223103211 in words is "eleven billion, two hundred twenty-three million, one hundred three thousand, two hundred eleven".