30432216209 has 2 divisors, whose sum is σ = 30432216210. Its totient is φ = 30432216208.

The previous prime is 30432216169. The next prime is 30432216259. The reversal of 30432216209 is 90261223403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18600868225 + 11831347984 = 136385^2 + 108772^2 .

It is a cyclic number.

It is not a de Polignac number, because 30432216209 - 2¹⁶ = 30432150673 is a prime.

It is a super-2 number, since 2×30432216209² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30432216259) 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, 15216108104 + 15216108105.

It is an arithmetic number, because the mean of its divisors is an integer number (15216108105).

Almost surely, 2^30432216209 is an apocalyptic number.

It is an amenable number.

30432216209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30432216209 is an equidigital number, since it uses as much as digits as its factorization.

30432216209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 30432216209 in words is "thirty billion, four hundred thirty-two million, two hundred sixteen thousand, two hundred nine".