111888801 has 6 divisors (see below), whose sum is σ = 161617170. Its totient is φ = 74592528.

The previous prime is 111888787. The next prime is 111888809. The reversal of 111888801 is 108888111.

It can be written as a sum of positive squares in only one way, i.e., 110754576 + 1134225 = 10524^2 + 1065^2 .

It is not a de Polignac number, because 111888801 - 2⁵ = 111888769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111888809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6216036 + ... + 6216053.

It is an arithmetic number, because the mean of its divisors is an integer number (26936195).

Almost surely, 2^111888801 is an apocalyptic number.

It is an amenable number.

111888801 is a deficient number, since it is larger than the sum of its proper divisors (49728369).

111888801 is a wasteful number, since it uses less digits than its factorization.

111888801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432095 (or 12432092 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 36.

The square root of 111888801 is about 10577.7502806599. The cubic root of 111888801 is about 481.8688729810.

The spelling of 111888801 in words is "one hundred eleven million, eight hundred eighty-eight thousand, eight hundred one".