320130310040 has 16 divisors (see below), whose sum is σ = 720293197680. Its totient is φ = 128052124000.

The previous prime is 320130309973. The next prime is 320130310109. The reversal of 320130310040 is 40013031023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4001628836 + ... + 4001628915.

It is an arithmetic number, because the mean of its divisors is an integer number (45018324855).

Almost surely, 2^320130310040 is an apocalyptic number.

It is an amenable number.

320130310040 is an abundant number, since it is smaller than the sum of its proper divisors (400162887640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320130310040 is a wasteful number, since it uses less digits than its factorization.

320130310040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003257762 (or 8003257758 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 320130310040 its reverse (40013031023), we get a palindrome (360143341063).

The spelling of 320130310040 in words is "three hundred twenty billion, one hundred thirty million, three hundred ten thousand, forty".