311430243022343 has 2 divisors, whose sum is σ = 311430243022344. Its totient is φ = 311430243022342.

The previous prime is 311430243022273. The next prime is 311430243022361. The reversal of 311430243022343 is 343220342034113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311430243022343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311430243022243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155715121511171 + 155715121511172.

It is an arithmetic number, because the mean of its divisors is an integer number (155715121511172).

Almost surely, 2^{311430243022343} is an apocalyptic number.

311430243022343 is a deficient number, since it is larger than the sum of its proper divisors (1).

311430243022343 is an equidigital number, since it uses as much as digits as its factorization.

311430243022343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 311430243022343 its reverse (343220342034113), we get a palindrome (654650585056456).

The spelling of 311430243022343 in words is "three hundred eleven trillion, four hundred thirty billion, two hundred forty-three million, twenty-two thousand, three hundred forty-three".