102110042305 has 4 divisors (see below), whose sum is σ = 122532050772. Its totient is φ = 81688033840.

The previous prime is 102110042303. The next prime is 102110042329. The reversal of 102110042305 is 503240011201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28616458896 + 73493583409 = 169164^2 + 271097^2 .

It is not a de Polignac number, because 102110042305 - 2¹ = 102110042303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102110042303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10211004226 + ... + 10211004235.

It is an arithmetic number, because the mean of its divisors is an integer number (30633012693).

Almost surely, 2^102110042305 is an apocalyptic number.

It is an amenable number.

102110042305 is a deficient number, since it is larger than the sum of its proper divisors (20422008467).

102110042305 is an equidigital number, since it uses as much as digits as its factorization.

102110042305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20422008466.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 102110042305 its reverse (503240011201), we get a palindrome (605350053506).

The spelling of 102110042305 in words is "one hundred two billion, one hundred ten million, forty-two thousand, three hundred five".