111440331001 has 16 divisors (see below), whose sum is σ = 118225748160. Its totient is φ = 104747765760.

The previous prime is 111440330993. The next prime is 111440331011. The reversal of 111440331001 is 100133044111.

It is a cyclic number.

It is not a de Polignac number, because 111440331001 - 2³ = 111440330993 is a prime.

It is a super-2 number, since 2×111440331001² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 111440331001.

It is not an unprimeable number, because it can be changed into a prime (111440331011) 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 15 ways as a sum of consecutive naturals, for example, 5265721 + ... + 5286841.

It is an arithmetic number, because the mean of its divisors is an integer number (7389109260).

Almost surely, 2^111440331001 is an apocalyptic number.

It is an amenable number.

111440331001 is a deficient number, since it is larger than the sum of its proper divisors (6785417159).

111440331001 is a wasteful number, since it uses less digits than its factorization.

111440331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23304.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111440331001 its reverse (100133044111), we get a palindrome (211573375112).

The spelling of 111440331001 in words is "one hundred eleven billion, four hundred forty million, three hundred thirty-one thousand, one".