30505310189 has 2 divisors, whose sum is σ = 30505310190. Its totient is φ = 30505310188.

The previous prime is 30505310183. The next prime is 30505310243. The reversal of 30505310189 is 98101350503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22605122500 + 7900187689 = 150350^2 + 88883^2 .

It is a cyclic number.

It is not a de Polignac number, because 30505310189 - 2²⁴ = 30488532973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30505310183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15252655094 + 15252655095.

It is an arithmetic number, because the mean of its divisors is an integer number (15252655095).

Almost surely, 2^30505310189 is an apocalyptic number.

It is an amenable number.

30505310189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30505310189 is an equidigital number, since it uses as much as digits as its factorization.

30505310189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 30505310189 in words is "thirty billion, five hundred five million, three hundred ten thousand, one hundred eighty-nine".