2321319999 has 4 divisors (see below), whose sum is σ = 3095093336. Its totient is φ = 1547546664.

The previous prime is 2321319997. The next prime is 2321320007. The reversal of 2321319999 is 9999131232.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2321319999 - 2¹ = 2321319997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321319997) 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, 386886664 + ... + 386886669.

It is an arithmetic number, because the mean of its divisors is an integer number (773773334).

Almost surely, 2^2321319999 is an apocalyptic number.

2321319999 is a deficient number, since it is larger than the sum of its proper divisors (773773337).

2321319999 is an equidigital number, since it uses as much as digits as its factorization.

2321319999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773773336.

The product of its digits is 236196, while the sum is 48.

The square root of 2321319999 is about 48180.0788604585. The cubic root of 2321319999 is about 1324.0722113495.

It can be divided in two parts, 232 and 1319999, that added together give a palindrome (1320231).

The spelling of 2321319999 in words is "two billion, three hundred twenty-one million, three hundred nineteen thousand, nine hundred ninety-nine".