111411420 has 24 divisors (see below), whose sum is σ = 311952144. Its totient is φ = 29709696.

The previous prime is 111411413. The next prime is 111411457. The reversal of 111411420 is 24114111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111411420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928369 + ... + 928488.

It is an arithmetic number, because the mean of its divisors is an integer number (12998006).

Almost surely, 2^111411420 is an apocalyptic number.

111411420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111411420 is an abundant number, since it is smaller than the sum of its proper divisors (200540724).

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

111411420 is a wasteful number, since it uses less digits than its factorization.

111411420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856869 (or 1856867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 111411420 is about 10555.1608230287. The cubic root of 111411420 is about 481.1825875103.

Adding to 111411420 its reverse (24114111), we get a palindrome (135525531).

It can be divided in two parts, 11141 and 1420, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 111411420 in words is "one hundred eleven million, four hundred eleven thousand, four hundred twenty".