2311108404065 has 4 divisors (see below), whose sum is σ = 2773330084884. Its totient is φ = 1848886723248.

The previous prime is 2311108404013. The next prime is 2311108404079. The reversal of 2311108404065 is 5604048011132.

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 963948912481 + 1347159491584 = 981809^2 + 1160672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311108404065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231110840402 + ... + 231110840411.

It is an arithmetic number, because the mean of its divisors is an integer number (693332521221).

Almost surely, 2^{2311108404065} is an apocalyptic number.

It is an amenable number.

2311108404065 is a deficient number, since it is larger than the sum of its proper divisors (462221680819).

2311108404065 is an equidigital number, since it uses as much as digits as its factorization.

2311108404065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462221680818.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 2311108404065 in words is "two trillion, three hundred eleven billion, one hundred eight million, four hundred four thousand, sixty-five".