128304133135 has 16 divisors (see below), whose sum is σ = 154343319552. Its totient is φ = 102391380000.

The previous prime is 128304133127. The next prime is 128304133159. The reversal of 128304133135 is 531331403821.

It is not a de Polignac number, because 128304133135 - 2³ = 128304133127 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 128304133135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3402052 + ... + 3439558.

It is an arithmetic number, because the mean of its divisors is an integer number (9646457472).

Almost surely, 2^128304133135 is an apocalyptic number.

128304133135 is a deficient number, since it is larger than the sum of its proper divisors (26039186417).

128304133135 is an equidigital number, since it uses as much as digits as its factorization.

128304133135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39174.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 128304133135 its reverse (531331403821), we get a palindrome (659635536956).

The spelling of 128304133135 in words is "one hundred twenty-eight billion, three hundred four million, one hundred thirty-three thousand, one hundred thirty-five".