11123223011103 has 24 divisors (see below), whose sum is σ = 17252489058480. Its totient is φ = 6356074690560.

The previous prime is 11123223011081. The next prime is 11123223011111. The reversal of 11123223011103 is 30111032232111.

It is not a de Polignac number, because 11123223011103 - 2⁵ = 11123223011071 is a prime.

It is a super-2 number, since 2×11123223011103² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11123223011103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123223051103) 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, 23673823 + ... + 24139103.

It is an arithmetic number, because the mean of its divisors is an integer number (718853710770).

Almost surely, 2^{11123223011103} is an apocalyptic number.

11123223011103 is a deficient number, since it is larger than the sum of its proper divisors (6129266047377).

11123223011103 is a wasteful number, since it uses less digits than its factorization.

11123223011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627927 (or 627920 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11123223011103 its reverse (30111032232111), we get a palindrome (41234255243214).

The spelling of 11123223011103 in words is "eleven trillion, one hundred twenty-three billion, two hundred twenty-three million, eleven thousand, one hundred three".