30331225532081 has 2 divisors, whose sum is σ = 30331225532082. Its totient is φ = 30331225532080.

The previous prime is 30331225532051. The next prime is 30331225532099. The reversal of 30331225532081 is 18023552213303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21283311931456 + 9047913600625 = 4613384^2 + 3007975^2 .

It is a cyclic number.

It is not a de Polignac number, because 30331225532081 - 2³⁸ = 30056347625137 is a prime.

It is a super-2 number, since 2×30331225532081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30331225532051) 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, 15165612766040 + 15165612766041.

It is an arithmetic number, because the mean of its divisors is an integer number (15165612766041).

Almost surely, 2^{30331225532081} is an apocalyptic number.

It is an amenable number.

30331225532081 is a deficient number, since it is larger than the sum of its proper divisors (1).

30331225532081 is an equidigital number, since it uses as much as digits as its factorization.

30331225532081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 30331225532081 its reverse (18023552213303), we get a palindrome (48354777745384).

The spelling of 30331225532081 in words is "thirty trillion, three hundred thirty-one billion, two hundred twenty-five million, five hundred thirty-two thousand, eighty-one".