102003202020 has 48 divisors (see below), whose sum is σ = 300641019840. Its totient is φ = 25769229696.

The previous prime is 102003202019. The next prime is 102003202031. The reversal of 102003202020 is 20202300201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102003201987 and 102003202005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44737107 + ... + 44739386.

It is an arithmetic number, because the mean of its divisors is an integer number (6263354580).

Almost surely, 2^102003202020 is an apocalyptic number.

102003202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102003202020 is an abundant number, since it is smaller than the sum of its proper divisors (198637817820).

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

102003202020 is a wasteful number, since it uses less digits than its factorization.

102003202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89476524 (or 89476522 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 102003202020 its reverse (20202300201), we get a palindrome (122205502221).

The spelling of 102003202020 in words is "one hundred two billion, three million, two hundred two thousand, twenty".