102111115 has 8 divisors (see below), whose sum is σ = 125522208. Its totient is φ = 79696320.

The previous prime is 102111103. The next prime is 102111151. The reversal of 102111115 is 511111201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102111115 - 2¹¹ = 102109067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102111095 and 102111104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248847 + ... + 249256.

It is an arithmetic number, because the mean of its divisors is an integer number (15690276).

Almost surely, 2^102111115 is an apocalyptic number.

102111115 is a deficient number, since it is larger than the sum of its proper divisors (23411093).

102111115 is an equidigital number, since it uses as much as digits as its factorization.

102111115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498149.

The product of its (nonzero) digits is 10, while the sum is 13.

The square root of 102111115 is about 10105.0044532400. The cubic root of 102111115 is about 467.4024732933.

Adding to 102111115 its reverse (511111201), we get a palindrome (613222316).

The spelling of 102111115 in words is "one hundred two million, one hundred eleven thousand, one hundred fifteen".