111444405543011 has 8 divisors (see below), whose sum is σ = 113547294607680. Its totient is φ = 109341522568512.

The previous prime is 111444405542983. The next prime is 111444405543041. The reversal of 111444405543011 is 110345504444111.

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 111444405543011 - 2⁶ = 111444405542947 is a prime.

It is a super-2 number, since 2×111444405543011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111444405543041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55106111 + ... + 57092663.

It is an arithmetic number, because the mean of its divisors is an integer number (14193411825960).

Almost surely, 2^{111444405543011} is an apocalyptic number.

111444405543011 is a deficient number, since it is larger than the sum of its proper divisors (2102889064669).

111444405543011 is a wasteful number, since it uses less digits than its factorization.

111444405543011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045085.

The product of its (nonzero) digits is 76800, while the sum is 38.

Adding to 111444405543011 its reverse (110345504444111), we get a palindrome (221789909987122).

The spelling of 111444405543011 in words is "one hundred eleven trillion, four hundred forty-four billion, four hundred five million, five hundred forty-three thousand, eleven".