320140002320 has 20 divisors (see below), whose sum is σ = 744325505580. Its totient is φ = 128056000896.

The previous prime is 320140002283. The next prime is 320140002337. The reversal of 320140002320 is 23200041023.

It can be written as a sum of positive squares in 2 ways, for example, as 60007361296 + 260132641024 = 244964^2 + 510032^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000874935 + ... + 2000875094.

It is an arithmetic number, because the mean of its divisors is an integer number (37216275279).

Almost surely, 2^320140002320 is an apocalyptic number.

It is an amenable number.

320140002320 is an abundant number, since it is smaller than the sum of its proper divisors (424185503260).

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

320140002320 is a wasteful number, since it uses less digits than its factorization.

320140002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001750042 (or 4001750036 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 320140002320 its reverse (23200041023), we get a palindrome (343340043343).

The spelling of 320140002320 in words is "three hundred twenty billion, one hundred forty million, two thousand, three hundred twenty".