111146534441 has 4 divisors (see below), whose sum is σ = 111789000132. Its totient is φ = 110504068752.

The previous prime is 111146534423. The next prime is 111146534489. The reversal of 111146534441 is 144435641111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144435641111 = 17 ⋅8496214183.

It can be written as a sum of positive squares in 2 ways, for example, as 60927517225 + 50219017216 = 246835^2 + 224096^2 .

It is a cyclic number.

It is not a de Polignac number, because 111146534441 - 2¹⁰ = 111146533417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111146534141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321232586 + ... + 321232931.

It is an arithmetic number, because the mean of its divisors is an integer number (27947250033).

Almost surely, 2^111146534441 is an apocalyptic number.

It is an amenable number.

111146534441 is a deficient number, since it is larger than the sum of its proper divisors (642465691).

111146534441 is an equidigital number, since it uses as much as digits as its factorization.

111146534441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642465690.

The product of its digits is 23040, while the sum is 35.

The spelling of 111146534441 in words is "one hundred eleven billion, one hundred forty-six million, five hundred thirty-four thousand, four hundred forty-one".