30001202020 has 24 divisors (see below), whose sum is σ = 63046549944. Its totient is φ = 11992094976.

The previous prime is 30001201981. The next prime is 30001202051. The reversal of 30001202020 is 2020210003.

It can be written as a sum of positive squares in 4 ways, for example, as 16326706176 + 13674495844 = 127776^2 + 116938^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30001201988 and 30001202006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494739 + ... + 552058.

It is an arithmetic number, because the mean of its divisors is an integer number (2626939581).

Almost surely, 2^30001202020 is an apocalyptic number.

It is an amenable number.

30001202020 is an abundant number, since it is smaller than the sum of its proper divisors (33045347924).

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

30001202020 is a wasteful number, since it uses less digits than its factorization.

30001202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048239 (or 1048237 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 30001202020 its reverse (2020210003), we get a palindrome (32021412023).

The spelling of 30001202020 in words is "thirty billion, one million, two hundred two thousand, twenty".