30013243020 has 36 divisors (see below), whose sum is σ = 91040171040. Its totient is φ = 8003531424.

The previous prime is 30013243003. The next prime is 30013243031. The reversal of 30013243020 is 2034231003.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 30013242984 and 30013243002.

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 11 ways as a sum of consecutive naturals, for example, 83369940 + ... + 83370299.

It is an arithmetic number, because the mean of its divisors is an integer number (2528893640).

Almost surely, 2^30013243020 is an apocalyptic number.

30013243020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30013243020 is an abundant number, since it is smaller than the sum of its proper divisors (61026928020).

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

30013243020 is a wasteful number, since it uses less digits than its factorization.

30013243020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166740254 (or 166740249 counting only the distinct ones).

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

Adding to 30013243020 its reverse (2034231003), we get a palindrome (32047474023).

The spelling of 30013243020 in words is "thirty billion, thirteen million, two hundred forty-three thousand, twenty".