65120316311 has 4 divisors (see below), whose sum is σ = 68547701400. Its totient is φ = 61692931224.

The previous prime is 65120316301. The next prime is 65120316319. The reversal of 65120316311 is 11361302156.

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

It is a cyclic number.

It is not a de Polignac number, because 65120316311 - 2²⁶ = 65053207447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65120316319) 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, 1713692516 + ... + 1713692553.

It is an arithmetic number, because the mean of its divisors is an integer number (17136925350).

Almost surely, 2^65120316311 is an apocalyptic number.

65120316311 is a deficient number, since it is larger than the sum of its proper divisors (3427385089).

65120316311 is a wasteful number, since it uses less digits than its factorization.

65120316311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427385088.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 65120316311 its reverse (11361302156), we get a palindrome (76481618467).

The spelling of 65120316311 in words is "sixty-five billion, one hundred twenty million, three hundred sixteen thousand, three hundred eleven".