311443331341231 has 16 divisors (see below), whose sum is σ = 315683294976000. Its totient is φ = 307210927327200.

The previous prime is 311443331341157. The next prime is 311443331341319. The reversal of 311443331341231 is 132143133344113.

It is a cyclic number.

It is not a de Polignac number, because 311443331341231 - 2¹¹ = 311443331339183 is a prime.

It is a super-2 number, since 2×311443331341231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311443331344231) 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, 412135146 + ... + 412890136.

It is an arithmetic number, because the mean of its divisors is an integer number (19730205936000).

Almost surely, 2^{311443331341231} is an apocalyptic number.

311443331341231 is a deficient number, since it is larger than the sum of its proper divisors (4239963634769).

311443331341231 is a wasteful number, since it uses less digits than its factorization.

311443331341231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759990.

The product of its digits is 93312, while the sum is 37.

Adding to 311443331341231 its reverse (132143133344113), we get a palindrome (443586464685344).

The spelling of 311443331341231 in words is "three hundred eleven trillion, four hundred forty-three billion, three hundred thirty-one million, three hundred forty-one thousand, two hundred thirty-one".