311342344351231 has 16 divisors (see below), whose sum is σ = 317273085043200. Its totient is φ = 305433515652448.

The previous prime is 311342344351229. The next prime is 311342344351271. The reversal of 311342344351231 is 132153443243113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 311342344351231 - 2¹ = 311342344351229 is a prime.

It is a super-2 number, since 2×311342344351231² (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 (311342344351211) 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, 302890110 + ... + 303916276.

It is an arithmetic number, because the mean of its divisors is an integer number (19829567815200).

Almost surely, 2^{311342344351231} is an apocalyptic number.

311342344351231 is a deficient number, since it is larger than the sum of its proper divisors (5930740691969).

311342344351231 is a wasteful number, since it uses less digits than its factorization.

311342344351231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036838.

The product of its digits is 311040, while the sum is 40.

Adding to 311342344351231 its reverse (132153443243113), we get a palindrome (443495787594344).

The spelling of 311342344351231 in words is "three hundred eleven trillion, three hundred forty-two billion, three hundred forty-four million, three hundred fifty-one thousand, two hundred thirty-one".