102128768115 has 32 divisors (see below), whose sum is σ = 188747076096. Its totient is φ = 46604213760.

The previous prime is 102128768113. The next prime is 102128768123. The reversal of 102128768115 is 511867821201.

It is not a de Polignac number, because 102128768115 - 2¹ = 102128768113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102128768113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18201967 + ... + 18207576.

It is an arithmetic number, because the mean of its divisors is an integer number (5898346128).

Almost surely, 2^102128768115 is an apocalyptic number.

102128768115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102128768115 is a deficient number, since it is larger than the sum of its proper divisors (86618307981).

102128768115 is a wasteful number, since it uses less digits than its factorization.

102128768115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36409579.

The product of its (nonzero) digits is 53760, while the sum is 42.

The spelling of 102128768115 in words is "one hundred two billion, one hundred twenty-eight million, seven hundred sixty-eight thousand, one hundred fifteen".