4121311165 has 4 divisors (see below), whose sum is σ = 4945573404. Its totient is φ = 3297048928.

The previous prime is 4121311153. The next prime is 4121311177. The reversal of 4121311165 is 5611131214.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4121311153) and next prime (4121311177).

It can be written as a sum of positive squares in 2 ways, for example, as 2467506276 + 1653804889 = 49674^2 + 40667^2 .

It is a cyclic number.

It is not a de Polignac number, because 4121311165 - 2²⁵ = 4087756733 is a prime.

It is a Duffinian number.

It is a congruent 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, 412131112 + ... + 412131121.

It is an arithmetic number, because the mean of its divisors is an integer number (1236393351).

Almost surely, 2^4121311165 is an apocalyptic number.

It is an amenable number.

4121311165 is a deficient number, since it is larger than the sum of its proper divisors (824262239).

4121311165 is an equidigital number, since it uses as much as digits as its factorization.

4121311165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824262238.

The product of its digits is 720, while the sum is 25.

The square root of 4121311165 is about 64197.4389286676. The cubic root of 4121311165 is about 1603.2889591940.

Adding to 4121311165 its reverse (5611131214), we get a palindrome (9732442379).

The spelling of 4121311165 in words is "four billion, one hundred twenty-one million, three hundred eleven thousand, one hundred sixty-five".