30135200020 has 24 divisors (see below), whose sum is σ = 63338854824. Its totient is φ = 12043616256.

The previous prime is 30135199967. The next prime is 30135200083. The reversal of 30135200020 is 2000253103.

It can be written as a sum of positive squares in 4 ways, for example, as 11682151056 + 18453048964 = 108084^2 + 135842^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30135199967 and 30135200003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630349 + ... + 676468.

It is an arithmetic number, because the mean of its divisors is an integer number (2639118951).

Almost surely, 2^30135200020 is an apocalyptic number.

It is an amenable number.

30135200020 is an abundant number, since it is smaller than the sum of its proper divisors (33203654804).

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

30135200020 is a wasteful number, since it uses less digits than its factorization.

30135200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307979 (or 1307977 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 30135200020 its reverse (2000253103), we get a palindrome (32135453123).

The spelling of 30135200020 in words is "thirty billion, one hundred thirty-five million, two hundred thousand, twenty".