320110221311 has 4 divisors (see below), whose sum is σ = 328761848952. Its totient is φ = 311458593672.

The previous prime is 320110221283. The next prime is 320110221317. The reversal of 320110221311 is 113122011023.

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 320110221311 - 2¹⁸ = 320109959167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320110221311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320110221317) 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, 4325813765 + ... + 4325813838.

It is an arithmetic number, because the mean of its divisors is an integer number (82190462238).

Almost surely, 2^320110221311 is an apocalyptic number.

320110221311 is a deficient number, since it is larger than the sum of its proper divisors (8651627641).

320110221311 is an equidigital number, since it uses as much as digits as its factorization.

320110221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651627640.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 320110221311 its reverse (113122011023), we get a palindrome (433232232334).

The spelling of 320110221311 in words is "three hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, three hundred eleven".