30340205521 has 2 divisors, whose sum is σ = 30340205522. Its totient is φ = 30340205520.

The previous prime is 30340205513. The next prime is 30340205527. The reversal of 30340205521 is 12550204303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27915726400 + 2424479121 = 167080^2 + 49239^2 .

It is a cyclic number.

It is not a de Polignac number, because 30340205521 - 2³ = 30340205513 is a prime.

It is not a weakly prime, because it can be changed into another prime (30340205527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15170102760 + 15170102761.

It is an arithmetic number, because the mean of its divisors is an integer number (15170102761).

Almost surely, 2^30340205521 is an apocalyptic number.

It is an amenable number.

30340205521 is a deficient number, since it is larger than the sum of its proper divisors (1).

30340205521 is an equidigital number, since it uses as much as digits as its factorization.

30340205521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 30340205521 its reverse (12550204303), we get a palindrome (42890409824).

The spelling of 30340205521 in words is "thirty billion, three hundred forty million, two hundred five thousand, five hundred twenty-one".