312002131312 has 10 divisors (see below), whose sum is σ = 604504129448. Its totient is φ = 156001065648.

The previous prime is 312002131291. The next prime is 312002131381. The reversal of 312002131312 is 213131200213.

It is a self number, because there is not a number n which added to its sum of digits gives 312002131312.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 9750066588 + ... + 9750066619.

Almost surely, 2^312002131312 is an apocalyptic number.

It is an amenable number.

312002131312 is a deficient number, since it is larger than the sum of its proper divisors (292501998136).

312002131312 is a wasteful number, since it uses less digits than its factorization.

312002131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500133215 (or 19500133209 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312002131312 its reverse (213131200213), we get a palindrome (525133331525).

The spelling of 312002131312 in words is "three hundred twelve billion, two million, one hundred thirty-one thousand, three hundred twelve".