11111203313223 has 24 divisors (see below), whose sum is σ = 16268157383040. Its totient is φ = 6741358434720.

The previous prime is 11111203313191. The next prime is 11111203313257. The reversal of 11111203313223 is 32231330211111.

It is not a de Polignac number, because 11111203313223 - 2⁵ = 11111203313191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111203313193 and 11111203313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111203313123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154299133 + ... + 154371126.

It is an arithmetic number, because the mean of its divisors is an integer number (677839890960).

Almost surely, 2^{11111203313223} is an apocalyptic number.

11111203313223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11111203313223 is a deficient number, since it is larger than the sum of its proper divisors (5156954069817).

11111203313223 is a wasteful number, since it uses less digits than its factorization.

11111203313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308670359 (or 308670346 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11111203313223 its reverse (32231330211111), we get a palindrome (43342533524334).

The spelling of 11111203313223 in words is "eleven trillion, one hundred eleven billion, two hundred three million, three hundred thirteen thousand, two hundred twenty-three".