31334324322440 has 64 divisors (see below), whose sum is σ = 70685883999360. Its totient is φ = 12501099719680.

The previous prime is 31334324322397. The next prime is 31334324322451. The reversal of 31334324322440 is 4422342343313.

It is a junction number, because it is equal to n+sod(n) for n = 31334324322394 and 31334324322403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51029645 + ... + 51640035.

It is an arithmetic number, because the mean of its divisors is an integer number (1104466937490).

Almost surely, 2^{31334324322440} is an apocalyptic number.

It is an amenable number.

31334324322440 is an abundant number, since it is smaller than the sum of its proper divisors (39351559676920).

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

31334324322440 is a wasteful number, since it uses less digits than its factorization.

31334324322440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613742 (or 613738 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 38.

Adding to 31334324322440 its reverse (4422342343313), we get a palindrome (35756666665753).

The spelling of 31334324322440 in words is "thirty-one trillion, three hundred thirty-four billion, three hundred twenty-four million, three hundred twenty-two thousand, four hundred forty".