31224034242 has 12 divisors (see below), whose sum is σ = 67652074230. Its totient is φ = 10408011408.

The previous prime is 31224034223. The next prime is 31224034267. The reversal of 31224034242 is 24243042213.

31224034242 is a `hidden beast` number, since 3 + 12 + 2 + 403 + 4 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27257679801 + 3966354441 = 165099^2 + 62979^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 867334267 + ... + 867334302.

Almost surely, 2^31224034242 is an apocalyptic number.

31224034242 is an abundant number, since it is smaller than the sum of its proper divisors (36428039988).

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

31224034242 is a wasteful number, since it uses less digits than its factorization.

31224034242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734668577 (or 1734668574 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 31224034242 its reverse (24243042213), we get a palindrome (55467076455).

The spelling of 31224034242 in words is "thirty-one billion, two hundred twenty-four million, thirty-four thousand, two hundred forty-two".