1020000000100 has 36 divisors (see below), whose sum is σ = 2213633818368. Its totient is φ = 407956900000.

The previous prime is 1020000000091. The next prime is 1020000000121. The reversal of 1020000000100 is 10000000201.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a self number, because there is not a number n which added to its sum of digits gives 1020000000100.

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 11 ways as a sum of consecutive naturals, for example, 421125 + ... + 1489075.

It is an arithmetic number, because the mean of its divisors is an integer number (61489828288).

Almost surely, 2^{1020000000100} is an apocalyptic number.

1020000000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020000000100 is an abundant number, since it is smaller than the sum of its proper divisors (1193633818268).

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

1020000000100 is a wasteful number, since it uses less digits than its factorization.

1020000000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077516 (or 1077509 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 1020000000100 its reverse (10000000201), we get a palindrome (1030000000301).

The spelling of 1020000000100 in words is "one trillion, twenty billion, one hundred", and thus it is an aban number.