311343320232543 has 16 divisors (see below), whose sum is σ = 415378442059776. Its totient is φ = 207435231532320.

The previous prime is 311343320232493. The next prime is 311343320232617. The reversal of 311343320232543 is 345232023343113.

It is not a de Polignac number, because 311343320232543 - 2¹³ = 311343320224351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311343320232443) 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, 45557538 + ... + 51943968.

It is an arithmetic number, because the mean of its divisors is an integer number (25961152628736).

Almost surely, 2^{311343320232543} is an apocalyptic number.

311343320232543 is a deficient number, since it is larger than the sum of its proper divisors (104035121827233).

311343320232543 is a wasteful number, since it uses less digits than its factorization.

311343320232543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396374.

The product of its (nonzero) digits is 466560, while the sum is 39.

Adding to 311343320232543 its reverse (345232023343113), we get a palindrome (656575343575656).

The spelling of 311343320232543 in words is "three hundred eleven trillion, three hundred forty-three billion, three hundred twenty million, two hundred thirty-two thousand, five hundred forty-three".