311303321223211 has 8 divisors (see below), whose sum is σ = 330741646035120. Its totient is φ = 292445244913248.

The previous prime is 311303321223199. The next prime is 311303321223217. The reversal of 311303321223211 is 112322123303113.

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

It is not a de Polignac number, because 311303321223211 - 2¹⁷ = 311303321092139 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 311303321223211.

It is not an unprimeable number, because it can be changed into a prime (311303321223217) 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, 145062124381 + ... + 145062126526.

It is an arithmetic number, because the mean of its divisors is an integer number (41342705754390).

Almost surely, 2^{311303321223211} is an apocalyptic number.

311303321223211 is a deficient number, since it is larger than the sum of its proper divisors (19438324811909).

311303321223211 is a wasteful number, since it uses less digits than its factorization.

311303321223211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290124250973.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 311303321223211 its reverse (112322123303113), we get a palindrome (423625444526324).

The spelling of 311303321223211 in words is "three hundred eleven trillion, three hundred three billion, three hundred twenty-one million, two hundred twenty-three thousand, two hundred eleven".