312202313321213 has 4 divisors (see below), whose sum is σ = 356802643795680. Its totient is φ = 267601982846748.

The previous prime is 312202313321209. The next prime is 312202313321237. The reversal of 312202313321213 is 312123313202213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312202313321213 - 2² = 312202313321209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312202313321273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22300165237223 + ... + 22300165237236.

It is an arithmetic number, because the mean of its divisors is an integer number (89200660948920).

Almost surely, 2^{312202313321213} is an apocalyptic number.

It is an amenable number.

312202313321213 is a deficient number, since it is larger than the sum of its proper divisors (44600330474467).

312202313321213 is an equidigital number, since it uses as much as digits as its factorization.

312202313321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44600330474466.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 312202313321213 its reverse (312123313202213), we get a palindrome (624325626523426).

The spelling of 312202313321213 in words is "three hundred twelve trillion, two hundred two billion, three hundred thirteen million, three hundred twenty-one thousand, two hundred thirteen".