320441320131 has 8 divisors (see below), whose sum is σ = 427703423760. Its totient is φ = 213403381632.

The previous prime is 320441320081. The next prime is 320441320139. The reversal of 320441320131 is 131023144023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-320441320131 is a prime.

It is a super-2 number, since 2×320441320131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320441320139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56037946 + ... + 56043663.

It is an arithmetic number, because the mean of its divisors is an integer number (53462927970).

Almost surely, 2^320441320131 is an apocalyptic number.

320441320131 is a deficient number, since it is larger than the sum of its proper divisors (107262103629).

320441320131 is a wasteful number, since it uses less digits than its factorization.

320441320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112082565.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 320441320131 its reverse (131023144023), we get a palindrome (451464464154).

The spelling of 320441320131 in words is "three hundred twenty billion, four hundred forty-one million, three hundred twenty thousand, one hundred thirty-one".