102102102 has 24 divisors (see below), whose sum is σ = 234234936. Its totient is φ = 32031936.

The previous prime is 102102089. The next prime is 102102109. The reversal of 102102102 is 201201201.

It is a Harshad number since it is a multiple of its sum of digits (9).

102102102 is a modest number, since divided by 102102 gives 102 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166528 + ... + 167139.

It is an arithmetic number, because the mean of its divisors is an integer number (9759789).

Almost surely, 2^102102102 is an apocalyptic number.

102102102 is an abundant number, since it is smaller than the sum of its proper divisors (132132834).

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

102102102 is a wasteful number, since it uses less digits than its factorization.

102102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333692 (or 333689 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 102102102 is about 10104.5584762522. The cubic root of 102102102 is about 467.3887208810.

Adding to 102102102 its reverse (201201201), we get a palindrome (303303303).

Subtracting 102102102 from its reverse (201201201), we obtain a palindrome (99099099).

The spelling of 102102102 in words is "one hundred two million, one hundred two thousand, one hundred two".