2011342340 has 24 divisors (see below), whose sum is σ = 4827221952. Its totient is φ = 689603040.

The previous prime is 2011342331. The next prime is 2011342343. The reversal of 2011342340 is 432431102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2011342343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7183226 + ... + 7183505.

It is an arithmetic number, because the mean of its divisors is an integer number (201134248).

Almost surely, 2^2011342340 is an apocalyptic number.

2011342340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011342340 is an abundant number, since it is smaller than the sum of its proper divisors (2815879612).

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

2011342340 is a wasteful number, since it uses less digits than its factorization.

2011342340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14366747 (or 14366745 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2011342340 is about 44847.9914823395. The cubic root of 2011342340 is about 1262.2983037590.

Adding to 2011342340 its reverse (432431102), we get a palindrome (2443773442).

The spelling of 2011342340 in words is "two billion, eleven million, three hundred forty-two thousand, three hundred forty".