30585353221 has 2 divisors, whose sum is σ = 30585353222. Its totient is φ = 30585353220.

The previous prime is 30585353209. The next prime is 30585353257. The reversal of 30585353221 is 12235358503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24684808996 + 5900544225 = 157114^2 + 76815^2 .

It is a cyclic number.

It is not a de Polignac number, because 30585353221 - 2¹⁷ = 30585222149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30585357221) 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, 15292676610 + 15292676611.

It is an arithmetic number, because the mean of its divisors is an integer number (15292676611).

Almost surely, 2^30585353221 is an apocalyptic number.

It is an amenable number.

30585353221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30585353221 is an equidigital number, since it uses as much as digits as its factorization.

30585353221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 30585353221 in words is "thirty billion, five hundred eighty-five million, three hundred fifty-three thousand, two hundred twenty-one".