31631275214 has 16 divisors (see below), whose sum is σ = 59154592896. Its totient is φ = 12323873400.

The previous prime is 31631275201. The next prime is 31631275219. The reversal of 31631275214 is 41257213613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31631275219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102698792 + ... + 102699099.

It is an arithmetic number, because the mean of its divisors is an integer number (3697162056).

Almost surely, 2^31631275214 is an apocalyptic number.

31631275214 is a deficient number, since it is larger than the sum of its proper divisors (27523317682).

31631275214 is a wasteful number, since it uses less digits than its factorization.

31631275214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205397911.

The product of its digits is 30240, while the sum is 35.

Adding to 31631275214 its reverse (41257213613), we get a palindrome (72888488827).

The spelling of 31631275214 in words is "thirty-one billion, six hundred thirty-one million, two hundred seventy-five thousand, two hundred fourteen".