31513224234 has 16 divisors (see below), whose sum is σ = 63225273888. Its totient is φ = 10471270512.

The previous prime is 31513224227. The next prime is 31513224287. The reversal of 31513224234 is 43242231513.

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 7 ways as a sum of consecutive naturals, for example, 8282332 + ... + 8286135.

It is an arithmetic number, because the mean of its divisors is an integer number (3951579618).

Almost surely, 2^31513224234 is an apocalyptic number.

31513224234 is an abundant number, since it is smaller than the sum of its proper divisors (31712049654).

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

31513224234 is a wasteful number, since it uses less digits than its factorization.

31513224234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16568789.

The product of its digits is 17280, while the sum is 30.

Adding to 31513224234 its reverse (43242231513), we get a palindrome (74755455747).

The spelling of 31513224234 in words is "thirty-one billion, five hundred thirteen million, two hundred twenty-four thousand, two hundred thirty-four".