2321320216 has 16 divisors (see below), whose sum is σ = 4608503640. Its totient is φ = 1092385920.

The previous prime is 2321320181. The next prime is 2321320217. The reversal of 2321320216 is 6120231232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321320217) 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, 8534130 + ... + 8534401.

Almost surely, 2^2321320216 is an apocalyptic number.

It is an amenable number.

2321320216 is a deficient number, since it is larger than the sum of its proper divisors (2287183424).

2321320216 is a wasteful number, since it uses less digits than its factorization.

2321320216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17068554 (or 17068550 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2321320216 is about 48180.0811124265. The cubic root of 2321320216 is about 1324.0722526081.

Adding to 2321320216 its reverse (6120231232), we get a palindrome (8441551448).

The spelling of 2321320216 in words is "two billion, three hundred twenty-one million, three hundred twenty thousand, two hundred sixteen".