31320243244 has 12 divisors (see below), whose sum is σ = 55561253944. Its totient is φ = 15445599264.

The previous prime is 31320243187. The next prime is 31320243247. The reversal of 31320243244 is 44234202313.

It is not an unprimeable number, because it can be changed into a prime (31320243247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53630262 + ... + 53630845.

Almost surely, 2^31320243244 is an apocalyptic number.

It is an amenable number.

31320243244 is a deficient number, since it is larger than the sum of its proper divisors (24241010700).

31320243244 is a wasteful number, since it uses less digits than its factorization.

31320243244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107261184 (or 107261182 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31320243244 its reverse (44234202313), we get a palindrome (75554445557).

The spelling of 31320243244 in words is "thirty-one billion, three hundred twenty million, two hundred forty-three thousand, two hundred forty-four".