111411202123 has 24 divisors (see below), whose sum is σ = 124239261888. Its totient is φ = 99271291392.

The previous prime is 111411202103. The next prime is 111411202129. The reversal of 111411202123 is 321202114111.

It is not a de Polignac number, because 111411202123 - 2²⁵ = 111377647691 is a prime.

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 111411202123.

It is not an unprimeable number, because it can be changed into a prime (111411202129) 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, 3238911 + ... + 3273127.

It is an arithmetic number, because the mean of its divisors is an integer number (5176635912).

Almost surely, 2^111411202123 is an apocalyptic number.

111411202123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111411202123 is a deficient number, since it is larger than the sum of its proper divisors (12828059765).

111411202123 is an equidigital number, since it uses as much as digits as its factorization.

111411202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34423 (or 34350 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111411202123 its reverse (321202114111), we get a palindrome (432613316234).

The spelling of 111411202123 in words is "one hundred eleven billion, four hundred eleven million, two hundred two thousand, one hundred twenty-three".