111411231123 has 8 divisors (see below), whose sum is σ = 148701929728. Its totient is φ = 74197343304.

The previous prime is 111411231089. The next prime is 111411231233. The reversal of 111411231123 is 321132114111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111411231123 - 2⁹ = 111411230611 is a prime.

It is a super-2 number, since 2×111411231123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111411231123.

It is not an unprimeable number, because it can be changed into a prime (111411233123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19199311 + ... + 19205112.

It is an arithmetic number, because the mean of its divisors is an integer number (18587741216).

Almost surely, 2^111411231123 is an apocalyptic number.

111411231123 is a deficient number, since it is larger than the sum of its proper divisors (37290698605).

111411231123 is an equidigital number, since it uses as much as digits as its factorization.

111411231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38405393.

The product of its digits is 144, while the sum is 21.

Adding to 111411231123 its reverse (321132114111), we get a palindrome (432543345234).

The spelling of 111411231123 in words is "one hundred eleven billion, four hundred eleven million, two hundred thirty-one thousand, one hundred twenty-three".