1030300321081 has 2 divisors, whose sum is σ = 1030300321082. Its totient is φ = 1030300321080.

The previous prime is 1030300321021. The next prime is 1030300321121. The reversal of 1030300321081 is 1801230030301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959437881081 + 70862440000 = 979509^2 + 266200^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030300321081 - 2⁷ = 1030300320953 is a prime.

It is a super-2 number, since 2×1030300321081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1030300321021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515150160540 + 515150160541.

It is an arithmetic number, because the mean of its divisors is an integer number (515150160541).

Almost surely, 2^{1030300321081} is an apocalyptic number.

It is an amenable number.

1030300321081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030300321081 is an equidigital number, since it uses as much as digits as its factorization.

1030300321081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1030300321081 its reverse (1801230030301), we get a palindrome (2831530351382).

The spelling of 1030300321081 in words is "one trillion, thirty billion, three hundred million, three hundred twenty-one thousand, eighty-one".