102100200100 has 18 divisors (see below), whose sum is σ = 221557434434. Its totient is φ = 40840080000.

The previous prime is 102100200053. The next prime is 102100200121. The reversal of 102100200100 is 1002001201.

It can be written as a sum of positive squares in 3 ways, for example, as 33489732004 + 68610468096 = 183002^2 + 261936^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510500901 + ... + 510501100.

Almost surely, 2^102100200100 is an apocalyptic number.

102100200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100200100 is an abundant number, since it is smaller than the sum of its proper divisors (119457234334).

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

102100200100 is a wasteful number, since it uses less digits than its factorization.

102100200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021002015 (or 1021002008 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 102100200100 its reverse (1002001201), we get a palindrome (103102201301).

The spelling of 102100200100 in words is "one hundred two billion, one hundred million, two hundred thousand, one hundred".