111543044405 has 8 divisors (see below), whose sum is σ = 144147934392. Its totient is φ = 82370248128.

The previous prime is 111543044387. The next prime is 111543044411. The reversal of 111543044405 is 504440345111.

It can be written as a sum of positive squares in 4 ways, for example, as 1131716881 + 110411327524 = 33641^2 + 332282^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111543044405 - 2¹² = 111543040309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858023354 + ... + 858023483.

It is an arithmetic number, because the mean of its divisors is an integer number (18018491799).

Almost surely, 2^111543044405 is an apocalyptic number.

It is an amenable number.

111543044405 is a deficient number, since it is larger than the sum of its proper divisors (32604889987).

111543044405 is a wasteful number, since it uses less digits than its factorization.

111543044405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716046855.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 111543044405 its reverse (504440345111), we get a palindrome (615983389516).

The spelling of 111543044405 in words is "one hundred eleven billion, five hundred forty-three million, forty-four thousand, four hundred five".