31223443344304 has 20 divisors (see below), whose sum is σ = 60495528071880. Its totient is φ = 15611694164480.

The previous prime is 31223443344259. The next prime is 31223443344337. The reversal of 31223443344304 is 40344334432213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10112739 + ... + 12834109.

It is an arithmetic number, because the mean of its divisors is an integer number (3024776403594).

Almost surely, 2^{31223443344304} is an apocalyptic number.

It is an amenable number.

31223443344304 is a deficient number, since it is larger than the sum of its proper divisors (29272084727576).

31223443344304 is a wasteful number, since it uses less digits than its factorization.

31223443344304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438468 (or 3438462 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 40.

Adding to 31223443344304 its reverse (40344334432213), we get a palindrome (71567777776517).

The spelling of 31223443344304 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred forty-three million, three hundred forty-four thousand, three hundred four".