11121441123 has 16 divisors (see below), whose sum is σ = 16908617376. Its totient is φ = 6441377280.

The previous prime is 11121441113. The next prime is 11121441143. The reversal of 11121441123 is 32114412111.

It is not a de Polignac number, because 11121441123 - 2¹² = 11121437027 is a prime.

It is a super-2 number, since 2×11121441123² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11121441123.

It is not an unprimeable number, because it can be changed into a prime (11121441103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8386548 + ... + 8387873.

It is an arithmetic number, because the mean of its divisors is an integer number (1056788586).

Almost surely, 2^11121441123 is an apocalyptic number.

11121441123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11121441123 is a deficient number, since it is larger than the sum of its proper divisors (5787176253).

11121441123 is a wasteful number, since it uses less digits than its factorization.

11121441123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16774454.

The product of its digits is 192, while the sum is 21.

Adding to 11121441123 its reverse (32114412111), we get a palindrome (43235853234).

The spelling of 11121441123 in words is "eleven billion, one hundred twenty-one million, four hundred forty-one thousand, one hundred twenty-three".