11112420 has 96 divisors (see below), whose sum is σ = 34473600. Its totient is φ = 2652160.

The previous prime is 11112403. The next prime is 11112421. The reversal of 11112420 is 2421111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11112396 and 11112405.

It is not an unprimeable number, because it can be changed into a prime (11112421) 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 31 ways as a sum of consecutive naturals, for example, 74506 + ... + 74654.

It is an arithmetic number, because the mean of its divisors is an integer number (359100).

Almost surely, 2^11112420 is an apocalyptic number.

11112420 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 11112420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17236800).

11112420 is an abundant number, since it is smaller than the sum of its proper divisors (23361180).

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

11112420 is a wasteful number, since it uses less digits than its factorization.

11112420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11112420 is about 3333.5296608850. The cubic root of 11112420 is about 223.1530784835.

Adding to 11112420 its reverse (2421111), we get a palindrome (13533531).

The spelling of 11112420 in words is "eleven million, one hundred twelve thousand, four hundred twenty".