30230512561 has 2 divisors, whose sum is σ = 30230512562. Its totient is φ = 30230512560.

The previous prime is 30230512469. The next prime is 30230512583. The reversal of 30230512561 is 16521503203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22535714161 + 7694798400 = 150119^2 + 87720^2 .

It is a cyclic number.

It is not a de Polignac number, because 30230512561 - 2⁹ = 30230512049 is a prime.

It is not a weakly prime, because it can be changed into another prime (30230512591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115256280 + 15115256281.

It is an arithmetic number, because the mean of its divisors is an integer number (15115256281).

Almost surely, 2^30230512561 is an apocalyptic number.

It is an amenable number.

30230512561 is a deficient number, since it is larger than the sum of its proper divisors (1).

30230512561 is an equidigital number, since it uses as much as digits as its factorization.

30230512561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 30230512561 in words is "thirty billion, two hundred thirty million, five hundred twelve thousand, five hundred sixty-one".