11223101123 has 32 divisors (see below), whose sum is σ = 13327493760. Its totient is φ = 9351014400.

The previous prime is 11223101101. The next prime is 11223101129. The reversal of 11223101123 is 32110132211.

It is not a de Polignac number, because 11223101123 - 2⁶ = 11223101059 is a prime.

It is a super-2 number, since 2×11223101123² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11223101129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 961961 + ... + 973557.

It is an arithmetic number, because the mean of its divisors is an integer number (416484180).

Almost surely, 2^11223101123 is an apocalyptic number.

11223101123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11223101123 is a deficient number, since it is larger than the sum of its proper divisors (2104392637).

11223101123 is a wasteful number, since it uses less digits than its factorization.

11223101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11807.

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

Adding to 11223101123 its reverse (32110132211), we get a palindrome (43333233334).

The spelling of 11223101123 in words is "eleven billion, two hundred twenty-three million, one hundred one thousand, one hundred twenty-three".