320310042443 has 4 divisors (see below), whose sum is σ = 320316347640. Its totient is φ = 320303737248.

The previous prime is 320310042431. The next prime is 320310042461. The reversal of 320310042443 is 344240013023.

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 320310042443 - 2¹⁴ = 320310026059 is a prime.

It is a super-2 number, since 2×320310042443² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320310042463) 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, 3075773 + ... + 3178206.

It is an arithmetic number, because the mean of its divisors is an integer number (80079086910).

Almost surely, 2^320310042443 is an apocalyptic number.

320310042443 is a deficient number, since it is larger than the sum of its proper divisors (6305197).

320310042443 is an equidigital number, since it uses as much as digits as its factorization.

320310042443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305196.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 320310042443 its reverse (344240013023), we get a palindrome (664550055466).

The spelling of 320310042443 in words is "three hundred twenty billion, three hundred ten million, forty-two thousand, four hundred forty-three".