111443805713 has 16 divisors (see below), whose sum is σ = 114746494800. Its totient is φ = 108156819456.

The previous prime is 111443805631. The next prime is 111443805719. The reversal of 111443805713 is 317508344111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13241795329 + 98202010384 = 115073^2 + 313372^2 .

It is a cyclic number.

It is not a de Polignac number, because 111443805713 - 2⁸ = 111443805457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111443805719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29379545 + ... + 29383337.

It is an arithmetic number, because the mean of its divisors is an integer number (7171655925).

Almost surely, 2^111443805713 is an apocalyptic number.

It is an amenable number.

111443805713 is a deficient number, since it is larger than the sum of its proper divisors (3302689087).

111443805713 is a wasteful number, since it uses less digits than its factorization.

111443805713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 111443805713 in words is "one hundred eleven billion, four hundred forty-three million, eight hundred five thousand, seven hundred thirteen".