31214130212 has 24 divisors (see below), whose sum is σ = 54994456440. Its totient is φ = 15501507840.

The previous prime is 31214130191. The next prime is 31214130281. The reversal of 31214130212 is 21203141213.

It can be written as a sum of positive squares in 4 ways, for example, as 1875236416 + 29338893796 = 43304^2 + 171286^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856162 + ... + 1872902.

It is an arithmetic number, because the mean of its divisors is an integer number (2291435685).

Almost surely, 2^31214130212 is an apocalyptic number.

It is an amenable number.

31214130212 is a deficient number, since it is larger than the sum of its proper divisors (23780326228).

31214130212 is a wasteful number, since it uses less digits than its factorization.

31214130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19871 (or 19869 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31214130212 its reverse (21203141213), we get a palindrome (52417271425).

The spelling of 31214130212 in words is "thirty-one billion, two hundred fourteen million, one hundred thirty thousand, two hundred twelve".