312213323312213 has 4 divisors (see below), whose sum is σ = 328645603486560. Its totient is φ = 295781043137868.

The previous prime is 312213323312203. The next prime is 312213323312237.

312213323312213 is nontrivially palindromic in base 10.

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 312213323312213 - 2⁸ = 312213323311957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312213323312213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312213323312203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8216140087145 + ... + 8216140087182.

It is an arithmetic number, because the mean of its divisors is an integer number (82161400871640).

Almost surely, 2^{312213323312213} is an apocalyptic number.

It is an amenable number.

312213323312213 is a deficient number, since it is larger than the sum of its proper divisors (16432280174347).

312213323312213 is a wasteful number, since it uses less digits than its factorization.

312213323312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16432280174346.

The product of its digits is 23328, while the sum is 32.

The spelling of 312213323312213 in words is "three hundred twelve trillion, two hundred thirteen billion, three hundred twenty-three million, three hundred twelve thousand, two hundred thirteen".