1030311200221 has 2 divisors, whose sum is σ = 1030311200222. Its totient is φ = 1030311200220.

The previous prime is 1030311200203. The next prime is 1030311200333. The reversal of 1030311200221 is 1220021130301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1025532934596 + 4778265625 = 1012686^2 + 69125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030311200221 - 2⁵ = 1030311200189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1030311200195 and 1030311200204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030311200021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515155600110 + 515155600111.

It is an arithmetic number, because the mean of its divisors is an integer number (515155600111).

Almost surely, 2^{1030311200221} is an apocalyptic number.

It is an amenable number.

1030311200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030311200221 is an equidigital number, since it uses as much as digits as its factorization.

1030311200221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1030311200221 its reverse (1220021130301), we get a palindrome (2250332330522).

The spelling of 1030311200221 in words is "one trillion, thirty billion, three hundred eleven million, two hundred thousand, two hundred twenty-one".