128103863015 has 8 divisors (see below), whose sum is σ = 157299627408. Its totient is φ = 100099762560.

The previous prime is 128103862973. The next prime is 128103863033. The reversal of 128103863015 is 510368301821.

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

It is not a de Polignac number, because 128103863015 - 2¹² = 128103858919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128103863015.

It is a congruent number.

It is an unprimeable number.

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, 297915746 + ... + 297916175.

It is an arithmetic number, because the mean of its divisors is an integer number (19662453426).

Almost surely, 2^128103863015 is an apocalyptic number.

128103863015 is a deficient number, since it is larger than the sum of its proper divisors (29195764393).

128103863015 is an equidigital number, since it uses as much as digits as its factorization.

128103863015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595831969.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 128103863015 in words is "one hundred twenty-eight billion, one hundred three million, eight hundred sixty-three thousand, fifteen".