31230241222240 has 48 divisors (see below), whose sum is σ = 76989333804768. Its totient is φ = 11948961857536.

The previous prime is 31230241222211. The next prime is 31230241222253. The reversal of 31230241222240 is 4222214203213.

It is a junction number, because it is equal to n+sod(n) for n = 31230241222199 and 31230241222208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4243235617 + ... + 4243242976.

It is an arithmetic number, because the mean of its divisors is an integer number (1603944454266).

Almost surely, 2^{31230241222240} is an apocalyptic number.

It is an amenable number.

31230241222240 is an abundant number, since it is smaller than the sum of its proper divisors (45759092582528).

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

31230241222240 is a wasteful number, since it uses less digits than its factorization.

31230241222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486478631 (or 8486478623 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31230241222240 its reverse (4222214203213), we get a palindrome (35452455425453).

The spelling of 31230241222240 in words is "thirty-one trillion, two hundred thirty billion, two hundred forty-one million, two hundred twenty-two thousand, two hundred forty".