2011342540 has 12 divisors (see below), whose sum is σ = 4223819376. Its totient is φ = 804537008.

The previous prime is 2011342537. The next prime is 2011342547. The reversal of 2011342540 is 452431102.

It is not an unprimeable number, because it can be changed into a prime (2011342547) 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, 50283544 + ... + 50283583.

It is an arithmetic number, because the mean of its divisors is an integer number (351984948).

Almost surely, 2^2011342540 is an apocalyptic number.

2011342540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011342540 is an abundant number, since it is smaller than the sum of its proper divisors (2212476836).

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

2011342540 is a wasteful number, since it uses less digits than its factorization.

2011342540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100567136 (or 100567134 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2011342540 is about 44847.9937120937. The cubic root of 2011342540 is about 1262.2983455983.

Adding to 2011342540 its reverse (452431102), we get a palindrome (2463773642).

The spelling of 2011342540 in words is "two billion, eleven million, three hundred forty-two thousand, five hundred forty".