321310031022011 has 2 divisors, whose sum is σ = 321310031022012. Its totient is φ = 321310031022010.

The previous prime is 321310031021923. The next prime is 321310031022037. The reversal of 321310031022011 is 110220130013123.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321310031022011 - 2¹⁴ = 321310031005627 is a prime.

It is not a weakly prime, because it can be changed into another prime (321310031022511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160655015511005 + 160655015511006.

It is an arithmetic number, because the mean of its divisors is an integer number (160655015511006).

Almost surely, 2^{321310031022011} is an apocalyptic number.

321310031022011 is a deficient number, since it is larger than the sum of its proper divisors (1).

321310031022011 is an equidigital number, since it uses as much as digits as its factorization.

321310031022011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321310031022011 its reverse (110220130013123), we get a palindrome (431530161035134).

The spelling of 321310031022011 in words is "three hundred twenty-one trillion, three hundred ten billion, thirty-one million, twenty-two thousand, eleven".