320201020303240 has 16 divisors (see below), whose sum is σ = 720452295682380. Its totient is φ = 128080408121280.

The previous prime is 320201020303169. The next prime is 320201020303249. The reversal of 320201020303240 is 42303020102023.

It can be written as a sum of positive squares in 2 ways, for example, as 285474207744324 + 34726812558916 = 16895982^2 + 5892946^2 .

It is not an unprimeable number, because it can be changed into a prime (320201020303249) 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, 4002512753751 + ... + 4002512753830.

Almost surely, 2^{320201020303240} is an apocalyptic number.

It is an amenable number.

320201020303240 is an abundant number, since it is smaller than the sum of its proper divisors (400251275379140).

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

320201020303240 is a wasteful number, since it uses less digits than its factorization.

320201020303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005025507592 (or 8005025507588 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 320201020303240 its reverse (42303020102023), we get a palindrome (362504040405263).

The spelling of 320201020303240 in words is "three hundred twenty trillion, two hundred one billion, twenty million, three hundred three thousand, two hundred forty".