2311123333217 has 2 divisors, whose sum is σ = 2311123333218. Its totient is φ = 2311123333216.

The previous prime is 2311123333201. The next prime is 2311123333229. The reversal of 2311123333217 is 7123333211132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1678996569121 + 632126764096 = 1295761^2 + 795064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311123333217 - 2⁴ = 2311123333201 is a prime.

It is a super-2 number, since 2×2311123333217² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2311123033217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155561666608 + 1155561666609.

It is an arithmetic number, because the mean of its divisors is an integer number (1155561666609).

Almost surely, 2^{2311123333217} is an apocalyptic number.

It is an amenable number.

2311123333217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311123333217 is an equidigital number, since it uses as much as digits as its factorization.

2311123333217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 32.

Adding to 2311123333217 its reverse (7123333211132), we get a palindrome (9434456544349).

The spelling of 2311123333217 in words is "two trillion, three hundred eleven billion, one hundred twenty-three million, three hundred thirty-three thousand, two hundred seventeen".