312213040144333 has 2 divisors, whose sum is σ = 312213040144334. Its totient is φ = 312213040144332.

The previous prime is 312213040144309. The next prime is 312213040144349. The reversal of 312213040144333 is 333441040312213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184791996567684 + 127421043576649 = 13593822^2 + 11288093^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312213040144333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312213040144133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106520072166 + 156106520072167.

It is an arithmetic number, because the mean of its divisors is an integer number (156106520072167).

Almost surely, 2^{312213040144333} is an apocalyptic number.

It is an amenable number.

312213040144333 is a deficient number, since it is larger than the sum of its proper divisors (1).

312213040144333 is an equidigital number, since it uses as much as digits as its factorization.

312213040144333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 312213040144333 its reverse (333441040312213), we get a palindrome (645654080456546).

The spelling of 312213040144333 in words is "three hundred twelve trillion, two hundred thirteen billion, forty million, one hundred forty-four thousand, three hundred thirty-three".