111444043473 has 48 divisors (see below), whose sum is σ = 196083254016. Its totient is φ = 59539276800.

The previous prime is 111444043457. The next prime is 111444043493. The reversal of 111444043473 is 374340444111.

111444043473 is a `hidden beast` number, since 1 + 1 + 144 + 4 + 0 + 43 + 473 = 666.

It is not a de Polignac number, because 111444043473 - 2⁴ = 111444043457 is a prime.

It is a super-2 number, since 2×111444043473² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111444043493) 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 47 ways as a sum of consecutive naturals, for example, 182836 + ... + 506277.

It is an arithmetic number, because the mean of its divisors is an integer number (4085067792).

Almost surely, 2^111444043473 is an apocalyptic number.

It is an amenable number.

111444043473 is a deficient number, since it is larger than the sum of its proper divisors (84639210543).

111444043473 is a wasteful number, since it uses less digits than its factorization.

111444043473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689294 (or 689291 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

Adding to 111444043473 its reverse (374340444111), we get a palindrome (485784487584).

The spelling of 111444043473 in words is "one hundred eleven billion, four hundred forty-four million, forty-three thousand, four hundred seventy-three".