2321321144 has 16 divisors (see below), whose sum is σ = 4413780720. Its totient is φ = 1144312960.

The previous prime is 2321321141. The next prime is 2321321201. The reversal of 2321321144 is 4411231232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321321141) 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, 2042849 + ... + 2043984.

It is an arithmetic number, because the mean of its divisors is an integer number (275861295).

Almost surely, 2^2321321144 is an apocalyptic number.

It is an amenable number.

2321321144 is a deficient number, since it is larger than the sum of its proper divisors (2092459576).

2321321144 is a wasteful number, since it uses less digits than its factorization.

2321321144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086910 (or 4086906 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 2321321144 is about 48180.0907429615. The cubic root of 2321321144 is about 1324.0724290507.

Adding to 2321321144 its reverse (4411231232), we get a palindrome (6732552376).

The spelling of 2321321144 in words is "two billion, three hundred twenty-one million, three hundred twenty-one thousand, one hundred forty-four".