312130020212 has 24 divisors (see below), whose sum is σ = 570216143616. Its totient is φ = 149216826528.

The previous prime is 312130020187. The next prime is 312130020217. The reversal of 312130020212 is 212020031213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130020217) by changing a digit.

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, 492623 + ... + 931094.

It is an arithmetic number, because the mean of its divisors is an integer number (23759005984).

Almost surely, 2^312130020212 is an apocalyptic number.

It is an amenable number.

312130020212 is a deficient number, since it is larger than the sum of its proper divisors (258086123404).

312130020212 is a wasteful number, since it uses less digits than its factorization.

312130020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426127 (or 1426125 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 312130020212 its reverse (212020031213), we get a palindrome (524150051425).

The spelling of 312130020212 in words is "three hundred twelve billion, one hundred thirty million, twenty thousand, two hundred twelve".