11011203223 has 4 divisors (see below), whose sum is σ = 11124720880. Its totient is φ = 10897685568.

The previous prime is 11011203211. The next prime is 11011203233. The reversal of 11011203223 is 32230211011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32230211011 = 35671 ⋅903541.

It is a cyclic number.

It is not a de Polignac number, because 11011203223 - 2⁵ = 11011203191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011203197 and 11011203206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011203233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56758683 + ... + 56758876.

It is an arithmetic number, because the mean of its divisors is an integer number (2781180220).

Almost surely, 2^11011203223 is an apocalyptic number.

11011203223 is a deficient number, since it is larger than the sum of its proper divisors (113517657).

11011203223 is an equidigital number, since it uses as much as digits as its factorization.

11011203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113517656.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11011203223 its reverse (32230211011), we get a palindrome (43241414234).

The spelling of 11011203223 in words is "eleven billion, eleven million, two hundred three thousand, two hundred twenty-three".