2011323112420 has 48 divisors (see below), whose sum is σ = 4707616959360. Its totient is φ = 717351151104.

The previous prime is 2011323112373. The next prime is 2011323112441. The reversal of 2011323112420 is 242113231102.

It is a super-3 number, since 3×2011323112420³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011323112391 and 2011323112400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155668704 + ... + 155681623.

It is an arithmetic number, because the mean of its divisors is an integer number (98075353320).

Almost surely, 2^{2011323112420} is an apocalyptic number.

2011323112420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011323112420 is an abundant number, since it is smaller than the sum of its proper divisors (2696293846940).

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

2011323112420 is a wasteful number, since it uses less digits than its factorization.

2011323112420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311350372 (or 311350370 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2011323112420 its reverse (242113231102), we get a palindrome (2253436343522).

The spelling of 2011323112420 in words is "two trillion, eleven billion, three hundred twenty-three million, one hundred twelve thousand, four hundred twenty".