311214524343143 has 4 divisors (see below), whose sum is σ = 311214951868920. Its totient is φ = 311214096817368.

The previous prime is 311214524343083. The next prime is 311214524343211. The reversal of 311214524343143 is 341343425412113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311214524343143 - 2¹⁶ = 311214524277607 is a prime.

It is a super-2 number, since 2×311214524343143² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311214524343143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311214524340143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212669108 + ... + 214127481.

It is an arithmetic number, because the mean of its divisors is an integer number (77803737967230).

Almost surely, 2^{311214524343143} is an apocalyptic number.

311214524343143 is a deficient number, since it is larger than the sum of its proper divisors (427525777).

311214524343143 is an equidigital number, since it uses as much as digits as its factorization.

311214524343143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427525776.

The product of its digits is 414720, while the sum is 41.

Adding to 311214524343143 its reverse (341343425412113), we get a palindrome (652557949755256).

The spelling of 311214524343143 in words is "three hundred eleven trillion, two hundred fourteen billion, five hundred twenty-four million, three hundred forty-three thousand, one hundred forty-three".