30007420561 has 2 divisors, whose sum is σ = 30007420562. Its totient is φ = 30007420560.

The previous prime is 30007420523. The next prime is 30007420571. The reversal of 30007420561 is 16502470003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17115180625 + 12892239936 = 130825^2 + 113544^2 .

It is a cyclic number.

It is not a de Polignac number, because 30007420561 - 2¹⁹ = 30006896273 is a prime.

It is not a weakly prime, because it can be changed into another prime (30007420571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15003710280 + 15003710281.

It is an arithmetic number, because the mean of its divisors is an integer number (15003710281).

Almost surely, 2^30007420561 is an apocalyptic number.

It is an amenable number.

30007420561 is a deficient number, since it is larger than the sum of its proper divisors (1).

30007420561 is an equidigital number, since it uses as much as digits as its factorization.

30007420561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 30007420561 its reverse (16502470003), we get a palindrome (46509890564).

The spelling of 30007420561 in words is "thirty billion, seven million, four hundred twenty thousand, five hundred sixty-one".