111344561131 has 8 divisors (see below), whose sum is σ = 114744171024. Its totient is φ = 107965493280.

The previous prime is 111344561117. The next prime is 111344561177. The reversal of 111344561131 is 131165443111.

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 111344561131 - 2¹¹ = 111344559083 is a prime.

It is a super-2 number, since 2×111344561131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111344561093 and 111344561102.

It is not an unprimeable number, because it can be changed into a prime (111344561191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5124505 + ... + 5146186.

It is an arithmetic number, because the mean of its divisors is an integer number (14343021378).

Almost surely, 2^111344561131 is an apocalyptic number.

111344561131 is a deficient number, since it is larger than the sum of its proper divisors (3399609893).

111344561131 is a wasteful number, since it uses less digits than its factorization.

111344561131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271021.

The product of its digits is 4320, while the sum is 31.

The spelling of 111344561131 in words is "one hundred eleven billion, three hundred forty-four million, five hundred sixty-one thousand, one hundred thirty-one".