30112001809 has 2 divisors, whose sum is σ = 30112001810. Its totient is φ = 30112001808.

The previous prime is 30112001719. The next prime is 30112001813. The reversal of 30112001809 is 90810021103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29003111809 + 1108890000 = 170303^2 + 33300^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112001809 - 2⁷ = 30112001681 is a prime.

It is not a weakly prime, because it can be changed into another prime (30112004809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056000904 + 15056000905.

It is an arithmetic number, because the mean of its divisors is an integer number (15056000905).

Almost surely, 2^30112001809 is an apocalyptic number.

It is an amenable number.

30112001809 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112001809 is an equidigital number, since it uses as much as digits as its factorization.

30112001809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 30112001809 in words is "thirty billion, one hundred twelve million, one thousand, eight hundred nine".