10200000020 has 48 divisors (see below), whose sum is σ = 24485825280. Its totient is φ = 3496310784.

The previous prime is 10199999993. The next prime is 10200000059. The reversal of 10200000020 is 2000000201.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

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, 997172 + ... + 1007348.

It is an arithmetic number, because the mean of its divisors is an integer number (510121360).

Almost surely, 2^10200000020 is an apocalyptic number.

10200000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10200000020 is an abundant number, since it is smaller than the sum of its proper divisors (14285825260).

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

10200000020 is a wasteful number, since it uses less digits than its factorization.

10200000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17352 (or 17350 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 10200000020 its reverse (2000000201), we get a palindrome (12200000221).

The spelling of 10200000020 in words is "ten billion, two hundred million, twenty", and thus it is an aban number.