320340035020 has 24 divisors (see below), whose sum is σ = 673780207968. Its totient is φ = 127932940800.

The previous prime is 320340035011. The next prime is 320340035023. The reversal of 320340035020 is 20530043023.

It is a super-2 number, since 2×320340035020² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320340034982 and 320340035000.

It is not an unprimeable number, because it can be changed into a prime (320340035023) 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, 12679141 + ... + 12704380.

It is an arithmetic number, because the mean of its divisors is an integer number (28074175332).

Almost surely, 2^320340035020 is an apocalyptic number.

It is an amenable number.

320340035020 is an abundant number, since it is smaller than the sum of its proper divisors (353440172948).

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

320340035020 is a wasteful number, since it uses less digits than its factorization.

320340035020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25384161 (or 25384159 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

Adding to 320340035020 its reverse (20530043023), we get a palindrome (340870078043).

The spelling of 320340035020 in words is "three hundred twenty billion, three hundred forty million, thirty-five thousand, twenty".