30020373020 has 48 divisors (see below), whose sum is σ = 70451379936. Its totient is φ = 10650240000.

The previous prime is 30020372971. The next prime is 30020373077. The reversal of 30020373020 is 2037302003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30020372983 and 30020373001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655081 + ... + 1673120.

It is an arithmetic number, because the mean of its divisors is an integer number (1467737082).

Almost surely, 2^30020373020 is an apocalyptic number.

It is an amenable number.

30020373020 is an abundant number, since it is smaller than the sum of its proper divisors (40431006916).

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

30020373020 is a wasteful number, since it uses less digits than its factorization.

30020373020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328262 (or 3328260 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 20.

Adding to 30020373020 its reverse (2037302003), we get a palindrome (32057675023).

The spelling of 30020373020 in words is "thirty billion, twenty million, three hundred seventy-three thousand, twenty".