102002011100 has 144 divisors (see below), whose sum is σ = 269127774720. Its totient is φ = 33072307200.

The previous prime is 102002011087. The next prime is 102002011123. The reversal of 102002011100 is 1110200201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211757 + ... + 498843.

It is an arithmetic number, because the mean of its divisors is an integer number (1868942880).

Almost surely, 2^102002011100 is an apocalyptic number.

102002011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102002011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134563887360).

102002011100 is an abundant number, since it is smaller than the sum of its proper divisors (167125763620).

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

102002011100 is a wasteful number, since it uses less digits than its factorization.

102002011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287148 (or 287141 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 102002011100 its reverse (1110200201), we get a palindrome (103112211301).

The spelling of 102002011100 in words is "one hundred two billion, two million, eleven thousand, one hundred".