102111012102 has 24 divisors (see below), whose sum is σ = 224475449688. Its totient is φ = 30942730720.

The previous prime is 102111012089. The next prime is 102111012109. The reversal of 102111012102 is 201210111201.

102111012102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111012109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 70323663 + ... + 70325114.

It is an arithmetic number, because the mean of its divisors is an integer number (9353143737).

Almost surely, 2^102111012102 is an apocalyptic number.

102111012102 is an abundant number, since it is smaller than the sum of its proper divisors (122364437586).

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

102111012102 is a wasteful number, since it uses less digits than its factorization.

102111012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140648804 (or 140648793 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102111012102 its reverse (201210111201), we get a palindrome (303321123303).

Subtracting 102111012102 from its reverse (201210111201), we obtain a palindrome (99099099099).

The spelling of 102111012102 in words is "one hundred two billion, one hundred eleven million, twelve thousand, one hundred two".