102100044399991 has 8 divisors (see below), whose sum is σ = 116224556471424. Its totient is φ = 88782647304120.

The previous prime is 102100044399989. The next prime is 102100044400001. The reversal of 102100044399991 is 199993440001201.

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

It is not a de Polignac number, because 102100044399991 - 2¹ = 102100044399989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100044399911) 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 7 ways as a sum of consecutive naturals, for example, 201778743621 + ... + 201778744126.

It is an arithmetic number, because the mean of its divisors is an integer number (14528069558928).

Almost surely, 2^{102100044399991} is an apocalyptic number.

102100044399991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102100044399991 is a deficient number, since it is larger than the sum of its proper divisors (14124512071433).

102100044399991 is a wasteful number, since it uses less digits than its factorization.

102100044399991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403557487781.

The product of its (nonzero) digits is 629856, while the sum is 52.

The spelling of 102100044399991 in words is "one hundred two trillion, one hundred billion, forty-four million, three hundred ninety-nine thousand, nine hundred ninety-one".