111005231441 has 12 divisors (see below), whose sum is σ = 121649150448. Its totient is φ = 101231820144.

The previous prime is 111005231431. The next prime is 111005231479. The reversal of 111005231441 is 144132500111.

It is a de Polignac number, because none of the positive numbers 2^k-111005231441 is a prime.

It is a super-2 number, since 2×111005231441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111005231431) 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 11 ways as a sum of consecutive naturals, for example, 3942815 + ... + 3970868.

It is an arithmetic number, because the mean of its divisors is an integer number (10137429204).

Almost surely, 2^111005231441 is an apocalyptic number.

It is an amenable number.

111005231441 is a deficient number, since it is larger than the sum of its proper divisors (10643919007).

111005231441 is an equidigital number, since it uses as much as digits as its factorization.

111005231441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913792 (or 7913779 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 111005231441 its reverse (144132500111), we get a palindrome (255137731552).

The spelling of 111005231441 in words is "one hundred eleven billion, five million, two hundred thirty-one thousand, four hundred forty-one".