31142330312 has 64 divisors (see below), whose sum is σ = 60503889600. Its totient is φ = 15017333760.

The previous prime is 31142330309. The next prime is 31142330339. The reversal of 31142330312 is 21303324113.

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 15 ways as a sum of consecutive naturals, for example, 30146948 + ... + 30147980.

It is an arithmetic number, because the mean of its divisors is an integer number (945373275).

Almost surely, 2^31142330312 is an apocalyptic number.

It is an amenable number.

31142330312 is a deficient number, since it is larger than the sum of its proper divisors (29361559288).

31142330312 is a wasteful number, since it uses less digits than its factorization.

31142330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31142330312 its reverse (21303324113), we get a palindrome (52445654425).

The spelling of 31142330312 in words is "thirty-one billion, one hundred forty-two million, three hundred thirty thousand, three hundred twelve".