102102305550 has 48 divisors (see below), whose sum is σ = 289387108992. Its totient is φ = 23337669600.

The previous prime is 102102305533. The next prime is 102102305561. The reversal of 102102305550 is 55503201201.

It is a happy number.

102102305550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 102102305550.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 48619096 + ... + 48621195.

It is an arithmetic number, because the mean of its divisors is an integer number (6028898104).

Almost surely, 2^102102305550 is an apocalyptic number.

102102305550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102305550 is an abundant number, since it is smaller than the sum of its proper divisors (187284803442).

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

102102305550 is a wasteful number, since it uses less digits than its factorization.

102102305550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97240313 (or 97240308 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 102102305550 its reverse (55503201201), we get a palindrome (157605506751).

The spelling of 102102305550 in words is "one hundred two billion, one hundred two million, three hundred five thousand, five hundred fifty".