20020012108 has 6 divisors (see below), whose sum is σ = 35035021196. Its totient is φ = 10010006052.

The previous prime is 20020012063. The next prime is 20020012109. The reversal of 20020012108 is 80121002002.

It is a junction number, because it is equal to n+sod(n) for n = 20020012091 and 20020012100.

It is not an unprimeable number, because it can be changed into a prime (20020012109) by changing a digit.

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 as a sum of consecutive naturals, namely, 2502501510 + ... + 2502501517.

Almost surely, 2^20020012108 is an apocalyptic number.

It is an amenable number.

20020012108 is a deficient number, since it is larger than the sum of its proper divisors (15015009088).

20020012108 is a wasteful number, since it uses less digits than its factorization.

20020012108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005003031 (or 5005003029 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The spelling of 20020012108 in words is "twenty billion, twenty million, twelve thousand, one hundred eight".