2321320215 has 8 divisors (see below), whose sum is σ = 3714112368. Its totient is φ = 1238037440.

The previous prime is 2321320181. The next prime is 2321320217. The reversal of 2321320215 is 5120231232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2321320215 - 2¹⁶ = 2321254679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2321320191 and 2321320200.

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 7 ways as a sum of consecutive naturals, for example, 77377326 + ... + 77377355.

It is an arithmetic number, because the mean of its divisors is an integer number (464264046).

Almost surely, 2^2321320215 is an apocalyptic number.

2321320215 is a deficient number, since it is larger than the sum of its proper divisors (1392792153).

2321320215 is a wasteful number, since it uses less digits than its factorization.

2321320215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154754689.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2321320215 is about 48180.0811020488. The cubic root of 2321320215 is about 1324.0722524180.

Adding to 2321320215 its reverse (5120231232), we get a palindrome (7441551447).

The spelling of 2321320215 in words is "two billion, three hundred twenty-one million, three hundred twenty thousand, two hundred fifteen".