31242440240112 has 40 divisors (see below), whose sum is σ = 80710755522304. Its totient is φ = 10414002458304.

The previous prime is 31242440240027. The next prime is 31242440240129. The reversal of 31242440240112 is 21104204424213.

It is a self number, because there is not a number n which added to its sum of digits gives 31242440240112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980008 + ... + 7965255.

Almost surely, 2^{31242440240112} is an apocalyptic number.

It is an amenable number.

31242440240112 is an abundant number, since it is smaller than the sum of its proper divisors (49468315282192).

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

31242440240112 is a wasteful number, since it uses less digits than its factorization.

31242440240112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018037 (or 9018031 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 31242440240112 its reverse (21104204424213), we get a palindrome (52346644664325).

The spelling of 31242440240112 in words is "thirty-one trillion, two hundred forty-two billion, four hundred forty million, two hundred forty thousand, one hundred twelve".