102102107 has 4 divisors (see below), whose sum is σ = 103500840. Its totient is φ = 100703376.

The previous prime is 102102089. The next prime is 102102109. The reversal of 102102107 is 701201201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701201201 = 307 ⋅2284043.

It is a cyclic number.

It is not a de Polignac number, because 102102107 - 2⁶ = 102102043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102102091 and 102102100.

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 3 ways as a sum of consecutive naturals, for example, 699257 + ... + 699402.

It is an arithmetic number, because the mean of its divisors is an integer number (25875210).

Almost surely, 2^102102107 is an apocalyptic number.

102102107 is a deficient number, since it is larger than the sum of its proper divisors (1398733).

102102107 is an equidigital number, since it uses as much as digits as its factorization.

102102107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398732.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 102102107 is about 10104.5587236653. The cubic root of 102102107 is about 467.3887285105.

Adding to 102102107 its reverse (701201201), we get a palindrome (803303308).

The spelling of 102102107 in words is "one hundred two million, one hundred two thousand, one hundred seven".