111000112000209 has 56 divisors (see below), whose sum is σ = 170291869174440. Its totient is φ = 72292236486912.

The previous prime is 111000112000153. The next prime is 111000112000213. The reversal of 111000112000209 is 902000211000111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25938713025 + 110974173287184 = 161055^2 + 10534428^2 .

It is not a de Polignac number, because 111000112000209 - 2²³ = 111000103611601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111000112000191 and 111000112000200.

It is not an unprimeable number, because it can be changed into a prime (111000112000909) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2837407 + ... + 15167435.

Almost surely, 2^{111000112000209} is an apocalyptic number.

It is an amenable number.

111000112000209 is a deficient number, since it is larger than the sum of its proper divisors (59291757174231).

111000112000209 is an equidigital number, since it uses as much as digits as its factorization.

111000112000209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12330333 (or 12330318 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 111000112000209 in words is "one hundred eleven trillion, one hundred twelve million, two hundred nine", and thus it is an aban number.