311442132134443 has 2 divisors, whose sum is σ = 311442132134444. Its totient is φ = 311442132134442.

The previous prime is 311442132134417. The next prime is 311442132134447. The reversal of 311442132134443 is 344431231244113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311442132134443 - 2²⁹ = 311441595263531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311442132134396 and 311442132134405.

It is not a weakly prime, because it can be changed into another prime (311442132134447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155721066067221 + 155721066067222.

It is an arithmetic number, because the mean of its divisors is an integer number (155721066067222).

Almost surely, 2^{311442132134443} is an apocalyptic number.

311442132134443 is a deficient number, since it is larger than the sum of its proper divisors (1).

311442132134443 is an equidigital number, since it uses as much as digits as its factorization.

311442132134443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 40.

Adding to 311442132134443 its reverse (344431231244113), we get a palindrome (655873363378556).

The spelling of 311442132134443 in words is "three hundred eleven trillion, four hundred forty-two billion, one hundred thirty-two million, one hundred thirty-four thousand, four hundred forty-three".