102011302500 has 120 divisors (see below), whose sum is σ = 297818017728. Its totient is φ = 27168240000.

The previous prime is 102011302469. The next prime is 102011302559. The reversal of 102011302500 is 5203110201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102011302500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6149217 + ... + 6165783.

Almost surely, 2^102011302500 is an apocalyptic number.

102011302500 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 102011302500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148909008864).

102011302500 is an abundant number, since it is smaller than the sum of its proper divisors (195806715228).

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

102011302500 is a wasteful number, since it uses less digits than its factorization.

102011302500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17415 (or 17398 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 102011302500 its reverse (5203110201), we get a palindrome (107214412701).

The spelling of 102011302500 in words is "one hundred two billion, eleven million, three hundred two thousand, five hundred".