2321540111 has 16 divisors (see below), whose sum is σ = 2697103008. Its totient is φ = 1974835200.

The previous prime is 2321540063. The next prime is 2321540113. The reversal of 2321540111 is 1110451232.

It is a cyclic number.

It is not a de Polignac number, because 2321540111 - 2³⁰ = 1247798287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321540113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3530 + ... + 68231.

It is an arithmetic number, because the mean of its divisors is an integer number (168568938).

Almost surely, 2^2321540111 is an apocalyptic number.

2321540111 is a deficient number, since it is larger than the sum of its proper divisors (375562897).

2321540111 is a wasteful number, since it uses less digits than its factorization.

2321540111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71962.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2321540111 is about 48182.3630699035. The cubic root of 2321540111 is about 1324.1140603796.

Adding to 2321540111 its reverse (1110451232), we get a palindrome (3431991343).

The spelling of 2321540111 in words is "two billion, three hundred twenty-one million, five hundred forty thousand, one hundred eleven".