128130241345 has 4 divisors (see below), whose sum is σ = 153756289620. Its totient is φ = 102504193072.

The previous prime is 128130241273. The next prime is 128130241411. The reversal of 128130241345 is 543142031821.

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 84195146896 + 43935094449 = 290164^2 + 209607^2 .

It is a cyclic number.

It is not a de Polignac number, because 128130241345 - 2¹¹ = 128130239297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128130241345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12813024130 + ... + 12813024139.

It is an arithmetic number, because the mean of its divisors is an integer number (38439072405).

Almost surely, 2^128130241345 is an apocalyptic number.

It is an amenable number.

128130241345 is a deficient number, since it is larger than the sum of its proper divisors (25626048275).

128130241345 is an equidigital number, since it uses as much as digits as its factorization.

128130241345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25626048274.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 128130241345 in words is "one hundred twenty-eight billion, one hundred thirty million, two hundred forty-one thousand, three hundred forty-five".