111843261117 has 36 divisors (see below), whose sum is σ = 193006251516. Its totient is φ = 62183116800.

The previous prime is 111843261011. The next prime is 111843261143. The reversal of 111843261117 is 711162348111.

111843261117 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 4 + 32 + 611 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80622491481 + 31220769636 = 283941^2 + 176694^2 .

It is not a de Polignac number, because 111843261117 - 2¹⁰ = 111843260093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111843261197) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3410884 + ... + 3443517.

Almost surely, 2^111843261117 is an apocalyptic number.

It is an amenable number.

111843261117 is a deficient number, since it is larger than the sum of its proper divisors (81162990399).

111843261117 is a wasteful number, since it uses less digits than its factorization.

111843261117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854458 (or 6854448 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The spelling of 111843261117 in words is "one hundred eleven billion, eight hundred forty-three million, two hundred sixty-one thousand, one hundred seventeen".