312231012312 has 64 divisors (see below), whose sum is σ = 827744940000. Its totient is φ = 97806551040.

The previous prime is 312231012311. The next prime is 312231012323. The reversal of 312231012312 is 213210132213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231012311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309187 + ... + 848562.

Almost surely, 2^312231012312 is an apocalyptic number.

It is an amenable number.

312231012312 is an abundant number, since it is smaller than the sum of its proper divisors (515513927688).

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

312231012312 is a wasteful number, since it uses less digits than its factorization.

312231012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158436 (or 1158432 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 312231012312 its reverse (213210132213), we get a palindrome (525441144525).

The spelling of 312231012312 in words is "three hundred twelve billion, two hundred thirty-one million, twelve thousand, three hundred twelve".