231061108865 has 8 divisors (see below), whose sum is σ = 281178589248. Its totient is φ = 182245381360.

The previous prime is 231061108819. The next prime is 231061108871. The reversal of 231061108865 is 568801160132.

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

It is a de Polignac number, because none of the positive numbers 2^k-231061108865 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325437827 + ... + 325438536.

It is an arithmetic number, because the mean of its divisors is an integer number (35147323656).

Almost surely, 2^231061108865 is an apocalyptic number.

It is an amenable number.

231061108865 is a deficient number, since it is larger than the sum of its proper divisors (50117480383).

231061108865 is an equidigital number, since it uses as much as digits as its factorization.

231061108865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650876439.

The product of its (nonzero) digits is 69120, while the sum is 41.

Adding to 231061108865 its reverse (568801160132), we get a palindrome (799862268997).

The spelling of 231061108865 in words is "two hundred thirty-one billion, sixty-one million, one hundred eight thousand, eight hundred sixty-five".