31312421330444 has 12 divisors (see below), whose sum is σ = 55042462609344. Its totient is φ = 15586003442064.

The previous prime is 31312421330429. The next prime is 31312421330471. The reversal of 31312421330444 is 44403312421313.

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, 17551804787 + ... + 17551806570.

It is an arithmetic number, because the mean of its divisors is an integer number (4586871884112).

Almost surely, 2^{31312421330444} is an apocalyptic number.

It is an amenable number.

31312421330444 is a deficient number, since it is larger than the sum of its proper divisors (23730041278900).

31312421330444 is a wasteful number, since it uses less digits than its factorization.

31312421330444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35103611584 (or 35103611582 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 31312421330444 its reverse (44403312421313), we get a palindrome (75715733751757).

The spelling of 31312421330444 in words is "thirty-one trillion, three hundred twelve billion, four hundred twenty-one million, three hundred thirty thousand, four hundred forty-four".