111440215105 has 8 divisors (see below), whose sum is σ = 134302200552. Its totient is φ = 88769543808.

The previous prime is 111440215093. The next prime is 111440215127. The reversal of 111440215105 is 501512044111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12286392336 + 99153822769 = 110844^2 + 314887^2 .

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 111440215105 - 2¹⁷ = 111440084033 is a prime.

It is a super-2 number, since 2×111440215105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111440215105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47827254 + ... + 47829583.

It is an arithmetic number, because the mean of its divisors is an integer number (16787775069).

Almost surely, 2^111440215105 is an apocalyptic number.

It is an amenable number.

111440215105 is a deficient number, since it is larger than the sum of its proper divisors (22861985447).

111440215105 is an equidigital number, since it uses as much as digits as its factorization.

111440215105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95657075.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 111440215105 its reverse (501512044111), we get a palindrome (612952259216).

The spelling of 111440215105 in words is "one hundred eleven billion, four hundred forty million, two hundred fifteen thousand, one hundred five".