102002010020 has 48 divisors (see below), whose sum is σ = 224414335488. Its totient is φ = 38895310080.

The previous prime is 102002010001. The next prime is 102002010043. The reversal of 102002010020 is 20010200201.

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 15 ways as a sum of consecutive naturals, for example, 1186217 + ... + 1269296.

It is an arithmetic number, because the mean of its divisors is an integer number (4675298656).

Almost surely, 2^102002010020 is an apocalyptic number.

102002010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002010020 is an abundant number, since it is smaller than the sum of its proper divisors (122412325468).

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

102002010020 is a wasteful number, since it uses less digits than its factorization.

102002010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455620 (or 2455618 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 102002010020 its reverse (20010200201), we get a palindrome (122012210221).

The spelling of 102002010020 in words is "one hundred two billion, two million, ten thousand, twenty".