320310220030020 has 144 divisors (see below), whose sum is σ = 1059951399212160. Its totient is φ = 77649807705600.

The previous prime is 320310220030013. The next prime is 320310220030033. The reversal of 320310220030020 is 20030022013023.

It is a happy number.

320310220030020 is a `hidden beast` number, since 32 + 0 + 310 + 2 + 2 + 0 + 0 + 300 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 320310220029975 and 320310220030002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135925000 + ... + 138261440.

It is an arithmetic number, because the mean of its divisors is an integer number (7360773605640).

Almost surely, 2^{320310220030020} is an apocalyptic number.

320310220030020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320310220030020 is an abundant number, since it is smaller than the sum of its proper divisors (739641179182140).

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

320310220030020 is a wasteful number, since it uses less digits than its factorization.

320310220030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405706 (or 2405701 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 320310220030020 its reverse (20030022013023), we get a palindrome (340340242043043).

The spelling of 320310220030020 in words is "three hundred twenty trillion, three hundred ten billion, two hundred twenty million, thirty thousand, twenty".