111543104000 has 80 divisors (see below), whose sum is σ = 278139860856. Its totient is φ = 44617216000.

The previous prime is 111543103981. The next prime is 111543104011. The reversal of 111543104000 is 401345111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25820633344 + 85722470656 = 160688^2 + 292784^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807431 + ... + 935430.

Almost surely, 2^111543104000 is an apocalyptic number.

111543104000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111543104000 is an abundant number, since it is smaller than the sum of its proper divisors (166596756856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111543104000 is an frugal number, since it uses more digits than its factorization.

111543104000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742894 (or 1742868 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 111543104000 its reverse (401345111), we get a palindrome (111944449111).

The spelling of 111543104000 in words is "one hundred eleven billion, five hundred forty-three million, one hundred four thousand".