111130311123 has 32 divisors (see below), whose sum is σ = 177326553600. Its totient is φ = 68378383008.

The previous prime is 111130311107. The next prime is 111130311137. The reversal of 111130311123 is 321113031111.

It is not a de Polignac number, because 111130311123 - 2⁴ = 111130311107 is a prime.

It is a super-2 number, since 2×111130311123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111130311096 and 111130311105.

It is not an unprimeable number, because it can be changed into a prime (111130311923) 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, 3165058 + ... + 3199976.

It is an arithmetic number, because the mean of its divisors is an integer number (5541454800).

Almost surely, 2^111130311123 is an apocalyptic number.

111130311123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111130311123 is a deficient number, since it is larger than the sum of its proper divisors (66196242477).

111130311123 is a wasteful number, since it uses less digits than its factorization.

111130311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44008 (or 44002 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111130311123 its reverse (321113031111), we get a palindrome (432243342234).

The spelling of 111130311123 in words is "one hundred eleven billion, one hundred thirty million, three hundred eleven thousand, one hundred twenty-three".