320111343443 has 2 divisors, whose sum is σ = 320111343444. Its totient is φ = 320111343442.

The previous prime is 320111343437. The next prime is 320111343451. The reversal of 320111343443 is 344343111023.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320111343443 - 2¹⁴ = 320111327059 is a prime.

It is not a weakly prime, because it can be changed into another prime (320111345443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160055671721 + 160055671722.

It is an arithmetic number, because the mean of its divisors is an integer number (160055671722).

Almost surely, 2^320111343443 is an apocalyptic number.

320111343443 is a deficient number, since it is larger than the sum of its proper divisors (1).

320111343443 is an equidigital number, since it uses as much as digits as its factorization.

320111343443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 320111343443 its reverse (344343111023), we get a palindrome (664454454466).

The spelling of 320111343443 in words is "three hundred twenty billion, one hundred eleven million, three hundred forty-three thousand, four hundred forty-three".