31222320313001 has 2 divisors, whose sum is σ = 31222320313002. Its totient is φ = 31222320313000.

The previous prime is 31222320312991. The next prime is 31222320313013. The reversal of 31222320313001 is 10031302322213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30487569618025 + 734750694976 = 5521555^2 + 857176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31222320313001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (31222320313081) 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, 15611160156500 + 15611160156501.

It is an arithmetic number, because the mean of its divisors is an integer number (15611160156501).

Almost surely, 2^{31222320313001} is an apocalyptic number.

It is an amenable number.

31222320313001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31222320313001 is an equidigital number, since it uses as much as digits as its factorization.

31222320313001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31222320313001 its reverse (10031302322213), we get a palindrome (41253622635214).

The spelling of 31222320313001 in words is "thirty-one trillion, two hundred twenty-two billion, three hundred twenty million, three hundred thirteen thousand, one".