31224311320042 has 16 divisors (see below), whose sum is σ = 49357378380960. Its totient is φ = 14773712999472.

The previous prime is 31224311319977. The next prime is 31224311320051. The reversal of 31224311320042 is 24002311342213.

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, 465250933 + ... + 465318040.

It is an arithmetic number, because the mean of its divisors is an integer number (3084836148810).

Almost surely, 2^{31224311320042} is an apocalyptic number.

31224311320042 is a deficient number, since it is larger than the sum of its proper divisors (18133067060918).

31224311320042 is a wasteful number, since it uses less digits than its factorization.

31224311320042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930569877.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31224311320042 its reverse (24002311342213), we get a palindrome (55226622662255).

The spelling of 31224311320042 in words is "thirty-one trillion, two hundred twenty-four billion, three hundred eleven million, three hundred twenty thousand, forty-two".