312142202241212 has 96 divisors (see below), whose sum is σ = 652143157392384. Its totient is φ = 127818358272000.

The previous prime is 312142202241209. The next prime is 312142202241251. The reversal of 312142202241212 is 212142202241213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2207394503 + ... + 2207535905.

It is an arithmetic number, because the mean of its divisors is an integer number (6793157889504).

Almost surely, 2^{312142202241212} is an apocalyptic number.

It is an amenable number.

312142202241212 is an abundant number, since it is smaller than the sum of its proper divisors (340000955151172).

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

312142202241212 is a wasteful number, since it uses less digits than its factorization.

312142202241212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145179 (or 145177 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 312142202241212 its reverse (212142202241213), we get a palindrome (524284404482425).

Subtracting from 312142202241212 its reverse (212142202241213), we obtain a palindrome (99999999999999).

The spelling of 312142202241212 in words is "three hundred twelve trillion, one hundred forty-two billion, two hundred two million, two hundred forty-one thousand, two hundred twelve".