312212333320343 has 4 divisors (see below), whose sum is σ = 312239489314560. Its totient is φ = 312185177326128.

The previous prime is 312212333320319. The next prime is 312212333320351. The reversal of 312212333320343 is 343023333212213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312212333320343 - 2²⁸ = 312212064884887 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 (312212333320543) 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, 13577979863 + ... + 13578002856.

It is an arithmetic number, because the mean of its divisors is an integer number (78059872328640).

Almost surely, 2^{312212333320343} is an apocalyptic number.

312212333320343 is a deficient number, since it is larger than the sum of its proper divisors (27155994217).

312212333320343 is a wasteful number, since it uses less digits than its factorization.

312212333320343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27155994216.

The product of its (nonzero) digits is 139968, while the sum is 35.

Adding to 312212333320343 its reverse (343023333212213), we get a palindrome (655235666532556).

The spelling of 312212333320343 in words is "three hundred twelve trillion, two hundred twelve billion, three hundred thirty-three million, three hundred twenty thousand, three hundred forty-three".