2321323520 has 40 divisors (see below), whose sum is σ = 5565741984. Its totient is φ = 928528384.

The previous prime is 2321323469. The next prime is 2321323559. The reversal of 2321323520 is 253231232.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450824 + ... + 455943.

Almost surely, 2^2321323520 is an apocalyptic number.

2321323520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321323520 is an abundant number, since it is smaller than the sum of its proper divisors (3244418464).

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

2321323520 is an frugal number, since it uses more digits than its factorization.

2321323520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906790 (or 906774 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2321323520 is about 48180.1154004430. The cubic root of 2321323520 is about 1324.0728808042.

Adding to 2321323520 its reverse (253231232), we get a palindrome (2574554752).

The spelling of 2321323520 in words is "two billion, three hundred twenty-one million, three hundred twenty-three thousand, five hundred twenty".