30320003212020 has 72 divisors (see below), whose sum is σ = 91971453679560. Its totient is φ = 8085265858560.

The previous prime is 30320003211947. The next prime is 30320003212043. The reversal of 30320003212020 is 2021230002303.

It is a happy number.

30320003212020 is a `hidden beast` number, since 3 + 0 + 320 + 0 + 0 + 321 + 2 + 0 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1618075585296 + 28701927626724 = 1272036^2 + 5357418^2 .

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 = 30320003211984 and 30320003212002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22796716 + ... + 24090044.

It is an arithmetic number, because the mean of its divisors is an integer number (1277381301105).

Almost surely, 2^{30320003212020} is an apocalyptic number.

30320003212020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30320003212020 is an abundant number, since it is smaller than the sum of its proper divisors (61651450467540).

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

30320003212020 is a wasteful number, since it uses less digits than its factorization.

30320003212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423585 (or 1423580 counting only the distinct ones).

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

Adding to 30320003212020 its reverse (2021230002303), we get a palindrome (32341233214323).

The spelling of 30320003212020 in words is "thirty trillion, three hundred twenty billion, three million, two hundred twelve thousand, twenty".