111310420 has 48 divisors (see below), whose sum is σ = 253790208. Its totient is φ = 40763520.

The previous prime is 111310411. The next prime is 111310427. The reversal of 111310420 is 24013111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111310420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111310427) 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 15 ways as a sum of consecutive naturals, for example, 31335 + ... + 34705.

It is an arithmetic number, because the mean of its divisors is an integer number (5287296).

Almost surely, 2^111310420 is an apocalyptic number.

111310420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111310420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126895104).

111310420 is an abundant number, since it is smaller than the sum of its proper divisors (142479788).

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

111310420 is a wasteful number, since it uses less digits than its factorization.

111310420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520 (or 3518 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 111310420 is about 10550.3753487731. The cubic root of 111310420 is about 481.0371382237.

Adding to 111310420 its reverse (24013111), we get a palindrome (135323531).

The spelling of 111310420 in words is "one hundred eleven million, three hundred ten thousand, four hundred twenty".