111169563241 has 27 divisors (see below), whose sum is σ = 129878225463. Its totient is φ = 95064995520.

The previous prime is 111169563229. The next prime is 111169563269. The reversal of 111169563241 is 142365961111.

The square root of 111169563241 is 333421.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 86550698025 + 24618865216 = 294195^2 + 156904^2 .

It is not a de Polignac number, because 111169563241 - 2¹⁷ = 111169432169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111169563194 and 111169563203.

It is not an unprimeable number, because it can be changed into a prime (111169563221) 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 26 ways as a sum of consecutive naturals, for example, 62348836 + ... + 62350618.

Almost surely, 2^111169563241 is an apocalyptic number.

111169563241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111169563241 is the 333421-st square number.

111169563241 is the 166711-st centered octagonal number.

It is an amenable number.

111169563241 is a deficient number, since it is larger than the sum of its proper divisors (18708662222).

111169563241 is an frugal number, since it uses more digits than its factorization.

111169563241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622 (or 1811 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The spelling of 111169563241 in words is "one hundred eleven billion, one hundred sixty-nine million, five hundred sixty-three thousand, two hundred forty-one".