102101109999 has 32 divisors (see below), whose sum is σ = 170415083520. Its totient is φ = 53018015232.

The previous prime is 102101109997. The next prime is 102101110003. The reversal of 102101109999 is 999901101201.

It is not a de Polignac number, because 102101109999 - 2¹ = 102101109997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102101109999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101109997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4920639 + ... + 4941344.

It is an arithmetic number, because the mean of its divisors is an integer number (5325471360).

Almost surely, 2^102101109999 is an apocalyptic number.

102101109999 is a deficient number, since it is larger than the sum of its proper divisors (68313973521).

102101109999 is a wasteful number, since it uses less digits than its factorization.

102101109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9862039.

The product of its (nonzero) digits is 13122, while the sum is 42.

The spelling of 102101109999 in words is "one hundred two billion, one hundred one million, one hundred nine thousand, nine hundred ninety-nine".