311442352343 has 4 divisors (see below), whose sum is σ = 324983324208. Its totient is φ = 297901380480.

The previous prime is 311442352327. The next prime is 311442352367. The reversal of 311442352343 is 343253244113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343253244113 = 13 ⋅26404095701.

It is a cyclic number.

It is not a de Polignac number, because 311442352343 - 2⁴ = 311442352327 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 (311442352043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6770485898 + ... + 6770485943.

It is an arithmetic number, because the mean of its divisors is an integer number (81245831052).

Almost surely, 2^311442352343 is an apocalyptic number.

311442352343 is a deficient number, since it is larger than the sum of its proper divisors (13540971865).

311442352343 is a wasteful number, since it uses less digits than its factorization.

311442352343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13540971864.

The product of its digits is 103680, while the sum is 35.

Adding to 311442352343 its reverse (343253244113), we get a palindrome (654695596456).

The spelling of 311442352343 in words is "three hundred eleven billion, four hundred forty-two million, three hundred fifty-two thousand, three hundred forty-three".