111150434161 has 16 divisors (see below), whose sum is σ = 127267631568. Its totient is φ = 96164352000.

The previous prime is 111150434149. The next prime is 111150434167. The reversal of 111150434161 is 161434051111.

It can be written as a sum of positive squares in 8 ways, for example, as 4378336561 + 106772097600 = 66169^2 + 326760^2 .

It is a cyclic number.

It is not a de Polignac number, because 111150434161 - 2⁷ = 111150434033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111150434167) 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 15 ways as a sum of consecutive naturals, for example, 990190 + ... + 1096711.

It is an arithmetic number, because the mean of its divisors is an integer number (7954226973).

Almost surely, 2^111150434161 is an apocalyptic number.

It is an amenable number.

111150434161 is a deficient number, since it is larger than the sum of its proper divisors (16117197407).

111150434161 is a wasteful number, since it uses less digits than its factorization.

111150434161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087172.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 111150434161 its reverse (161434051111), we get a palindrome (272584485272).

The spelling of 111150434161 in words is "one hundred eleven billion, one hundred fifty million, four hundred thirty-four thousand, one hundred sixty-one".