111209104 has 20 divisors (see below), whose sum is σ = 228142764. Its totient is φ = 52333568.

The previous prime is 111209101. The next prime is 111209107. The reversal of 111209104 is 401902111.

It is an interprime number because it is at equal distance from previous prime (111209101) and next prime (111209107).

It can be written as a sum of positive squares in 2 ways, for example, as 52533504 + 58675600 = 7248^2 + 7660^2 .

It is not an unprimeable number, because it can be changed into a prime (111209101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204157 + ... + 204700.

Almost surely, 2^111209104 is an apocalyptic number.

It is an amenable number.

111209104 is an abundant number, since it is smaller than the sum of its proper divisors (116933660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111209104 is a wasteful number, since it uses less digits than its factorization.

111209104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408882 (or 408876 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 111209104 is about 10545.5727203410. The cubic root of 111209104 is about 480.8911454433.

The spelling of 111209104 in words is "one hundred eleven million, two hundred nine thousand, one hundred four".