311302220311013 has 8 divisors (see below), whose sum is σ = 323924269390848. Its totient is φ = 298930112797264.

The previous prime is 311302220311009. The next prime is 311302220311031. The reversal of 311302220311013 is 310113022203113.

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

It is a cyclic number.

It is not a de Polignac number, because 311302220311013 - 2² = 311302220311009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 311302220311013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311302220311063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62485388981 + ... + 62485393962.

It is an arithmetic number, because the mean of its divisors is an integer number (40490533673856).

Almost surely, 2^{311302220311013} is an apocalyptic number.

It is an amenable number.

311302220311013 is a deficient number, since it is larger than the sum of its proper divisors (12622049079835).

311302220311013 is a wasteful number, since it uses less digits than its factorization.

311302220311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124970783043.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 311302220311013 its reverse (310113022203113), we get a palindrome (621415242514126).

The spelling of 311302220311013 in words is "three hundred eleven trillion, three hundred two billion, two hundred twenty million, three hundred eleven thousand, thirteen".