111404020 has 48 divisors (see below), whose sum is σ = 287941248. Its totient is φ = 35256960.

The previous prime is 111403979. The next prime is 111404021. The reversal of 111404020 is 20404111.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111404021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28786 + ... + 32425.

It is an arithmetic number, because the mean of its divisors is an integer number (5998776).

Almost surely, 2^111404020 is an apocalyptic number.

111404020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111404020 is an abundant number, since it is smaller than the sum of its proper divisors (176537228).

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

111404020 is a wasteful number, since it uses less digits than its factorization.

111404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61240 (or 61238 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 111404020 is about 10554.8102777833. The cubic root of 111404020 is about 481.1719338149.

Adding to 111404020 its reverse (20404111), we get a palindrome (131808131).

Subtracting from 111404020 its reverse (20404111), we obtain a palindrome (90999909).

The spelling of 111404020 in words is "one hundred eleven million, four hundred four thousand, twenty".