320131444427 has 2 divisors, whose sum is σ = 320131444428. Its totient is φ = 320131444426.

The previous prime is 320131444417. The next prime is 320131444447. The reversal of 320131444427 is 724444131023.

It is a weak prime.

It is an emirp because it is prime and its reverse (724444131023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320131444427 - 2²⁴ = 320114667211 is a prime.

It is not a weakly prime, because it can be changed into another prime (320131444417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160065722213 + 160065722214.

It is an arithmetic number, because the mean of its divisors is an integer number (160065722214).

Almost surely, 2^320131444427 is an apocalyptic number.

320131444427 is a deficient number, since it is larger than the sum of its proper divisors (1).

320131444427 is an equidigital number, since it uses as much as digits as its factorization.

320131444427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 320131444427 in words is "three hundred twenty billion, one hundred thirty-one million, four hundred forty-four thousand, four hundred twenty-seven".