311011311322321 has 2 divisors, whose sum is σ = 311011311322322. Its totient is φ = 311011311322320.

The previous prime is 311011311322301. The next prime is 311011311322343. The reversal of 311011311322321 is 123223113110113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233275983890625 + 77735327431696 = 15273375^2 + 8816764^2 .

It is a cyclic number.

It is not a de Polignac number, because 311011311322321 - 2¹⁹ = 311011310798033 is a prime.

It is not a weakly prime, because it can be changed into another prime (311011311322301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155505655661160 + 155505655661161.

It is an arithmetic number, because the mean of its divisors is an integer number (155505655661161).

Almost surely, 2^{311011311322321} is an apocalyptic number.

It is an amenable number.

311011311322321 is a deficient number, since it is larger than the sum of its proper divisors (1).

311011311322321 is an equidigital number, since it uses as much as digits as its factorization.

311011311322321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 311011311322321 its reverse (123223113110113), we get a palindrome (434234424432434).

The spelling of 311011311322321 in words is "three hundred eleven trillion, eleven billion, three hundred eleven million, three hundred twenty-two thousand, three hundred twenty-one".