2011112420 has 12 divisors (see below), whose sum is σ = 4223336124. Its totient is φ = 804444960.

The previous prime is 2011112413. The next prime is 2011112423. The reversal of 2011112420 is 242111102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 336502336 + 1674610084 = 18344^2 + 40922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2011112395 and 2011112404.

It is not an unprimeable number, because it can be changed into a prime (2011112423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50277791 + ... + 50277830.

It is an arithmetic number, because the mean of its divisors is an integer number (351944677).

Almost surely, 2^2011112420 is an apocalyptic number.

2011112420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011112420 is an abundant number, since it is smaller than the sum of its proper divisors (2212223704).

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

2011112420 is a wasteful number, since it uses less digits than its factorization.

2011112420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100555630 (or 100555628 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2011112420 is about 44845.4280835851. The cubic root of 2011112420 is about 1262.2502034299.

Adding to 2011112420 its reverse (242111102), we get a palindrome (2253223522).

The spelling of 2011112420 in words is "two billion, eleven million, one hundred twelve thousand, four hundred twenty".