311310321133 has 16 divisors (see below), whose sum is σ = 357056423680. Its totient is φ = 265883803776.

The previous prime is 311310321109. The next prime is 311310321149. The reversal of 311310321133 is 331123013113.

It is a cyclic number.

It is not a de Polignac number, because 311310321133 - 2²¹ = 311308223981 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 (311310321233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2895016 + ... + 3000622.

It is an arithmetic number, because the mean of its divisors is an integer number (22316026480).

Almost surely, 2^311310321133 is an apocalyptic number.

It is an amenable number.

311310321133 is a deficient number, since it is larger than the sum of its proper divisors (45746102547).

311310321133 is a wasteful number, since it uses less digits than its factorization.

311310321133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107116.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 311310321133 its reverse (331123013113), we get a palindrome (642433334246).

The spelling of 311310321133 in words is "three hundred eleven billion, three hundred ten million, three hundred twenty-one thousand, one hundred thirty-three".