2331321243 has 16 divisors (see below), whose sum is σ = 3146052096. Its totient is φ = 1535482080.

The previous prime is 2331321173. The next prime is 2331321257. The reversal of 2331321243 is 3421231332.

It is not a de Polignac number, because 2331321243 - 2⁸ = 2331320987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2331321263) 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, 109998 + ... + 129468.

It is an arithmetic number, because the mean of its divisors is an integer number (196628256).

Almost surely, 2^2331321243 is an apocalyptic number.

2331321243 is a deficient number, since it is larger than the sum of its proper divisors (814730853).

2331321243 is a wasteful number, since it uses less digits than its factorization.

2331321243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19954.

The product of its digits is 2592, while the sum is 24.

The square root of 2331321243 is about 48283.7575484759. The cubic root of 2331321243 is about 1325.9710443004.

Adding to 2331321243 its reverse (3421231332), we get a palindrome (5752552575).

The spelling of 2331321243 in words is "two billion, three hundred thirty-one million, three hundred twenty-one thousand, two hundred forty-three".