30020021002 has 16 divisors (see below), whose sum is σ = 46626791400. Its totient is φ = 14478735040.

The previous prime is 30020020981. The next prime is 30020021011. The reversal of 30020021002 is 20012002003.

It can be written as a sum of positive squares in 4 ways, for example, as 29922426361 + 97594641 = 172981^2 + 9879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30020021002.

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 7 ways as a sum of consecutive naturals, for example, 182377 + ... + 305452.

Almost surely, 2^30020021002 is an apocalyptic number.

30020021002 is a deficient number, since it is larger than the sum of its proper divisors (16606770398).

30020021002 is a wasteful number, since it uses less digits than its factorization.

30020021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488921.

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

Adding to 30020021002 its reverse (20012002003), we get a palindrome (50032023005).

The spelling of 30020021002 in words is "thirty billion, twenty million, twenty-one thousand, two".