320131444441 has 4 divisors (see below), whose sum is σ = 322251520384. Its totient is φ = 318011368500.

The previous prime is 320131444427. The next prime is 320131444447. The reversal of 320131444441 is 144444131023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144444131023 = 1567 ⋅92178769.

It is a cyclic number.

It is not a de Polignac number, because 320131444441 - 2⁷ = 320131444313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320131444447) 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, 1060037745 + ... + 1060038046.

It is an arithmetic number, because the mean of its divisors is an integer number (80562880096).

Almost surely, 2^320131444441 is an apocalyptic number.

It is an amenable number.

320131444441 is a deficient number, since it is larger than the sum of its proper divisors (2120075943).

320131444441 is a wasteful number, since it uses less digits than its factorization.

320131444441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120075942.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 320131444441 its reverse (144444131023), we get a palindrome (464575575464).

The spelling of 320131444441 in words is "three hundred twenty billion, one hundred thirty-one million, four hundred forty-four thousand, four hundred forty-one".