236109128113 has 4 divisors (see below), whose sum is σ = 236158394148. Its totient is φ = 236059862080.

The previous prime is 236109128107. The next prime is 236109128173. The reversal of 236109128113 is 311821901632.

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 130333274289 + 105775853824 = 361017^2 + 325232^2 .

It is a cyclic number.

It is not a de Polignac number, because 236109128113 - 2⁵ = 236109128081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (236109128173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24625828 + ... + 24635413.

It is an arithmetic number, because the mean of its divisors is an integer number (59039598537).

Almost surely, 2^236109128113 is an apocalyptic number.

It is an amenable number.

236109128113 is a deficient number, since it is larger than the sum of its proper divisors (49266035).

236109128113 is an equidigital number, since it uses as much as digits as its factorization.

236109128113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49266034.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 236109128113 in words is "two hundred thirty-six billion, one hundred nine million, one hundred twenty-eight thousand, one hundred thirteen".