2321344545 has 16 divisors (see below), whose sum is σ = 3999855552. Its totient is φ = 1142815680.

The previous prime is 2321344541. The next prime is 2321344559. The reversal of 2321344545 is 5454431232.

It is not a de Polignac number, because 2321344545 - 2² = 2321344541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2321344541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5951971 + ... + 5952360.

It is an arithmetic number, because the mean of its divisors is an integer number (249990972).

Almost surely, 2^2321344545 is an apocalyptic number.

It is an amenable number.

2321344545 is a deficient number, since it is larger than the sum of its proper divisors (1678511007).

2321344545 is a wasteful number, since it uses less digits than its factorization.

2321344545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11904352.

The product of its digits is 57600, while the sum is 33.

The square root of 2321344545 is about 48180.3335916222. Note that the first 3 decimals coincide. The cubic root of 2321344545 is about 1324.0768783151.

Adding to 2321344545 its reverse (5454431232), we get a palindrome (7775775777).

The spelling of 2321344545 in words is "two billion, three hundred twenty-one million, three hundred forty-four thousand, five hundred forty-five".