312220323332311 has 2 divisors, whose sum is σ = 312220323332312. Its totient is φ = 312220323332310.

The previous prime is 312220323332251. The next prime is 312220323332327. The reversal of 312220323332311 is 113233323022213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312220323332311 - 2³³ = 312211733397719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312220323332011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156110161666155 + 156110161666156.

It is an arithmetic number, because the mean of its divisors is an integer number (156110161666156).

Almost surely, 2^{312220323332311} is an apocalyptic number.

312220323332311 is a deficient number, since it is larger than the sum of its proper divisors (1).

312220323332311 is an equidigital number, since it uses as much as digits as its factorization.

312220323332311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 312220323332311 its reverse (113233323022213), we get a palindrome (425453646354524).

The spelling of 312220323332311 in words is "three hundred twelve trillion, two hundred twenty billion, three hundred twenty-three million, three hundred thirty-two thousand, three hundred eleven".