102110210109 has 12 divisors (see below), whose sum is σ = 147495618816. Its totient is φ = 68072045832.

The previous prime is 102110210087. The next prime is 102110210113. The reversal of 102110210109 is 901012011201.

It is a happy number.

It is not a de Polignac number, because 102110210109 - 2⁸ = 102110209853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102110210091 and 102110210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110210149) 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, 507874 + ... + 679820.

It is an arithmetic number, because the mean of its divisors is an integer number (12291301568).

Almost surely, 2^102110210109 is an apocalyptic number.

It is an amenable number.

102110210109 is a deficient number, since it is larger than the sum of its proper divisors (45385408707).

102110210109 is a wasteful number, since it uses less digits than its factorization.

102110210109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237936 (or 237933 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 102110210109 in words is "one hundred two billion, one hundred ten million, two hundred ten thousand, one hundred nine".