30479588221 has 2 divisors, whose sum is σ = 30479588222. Its totient is φ = 30479588220.

The previous prime is 30479588203. The next prime is 30479588233. The reversal of 30479588221 is 12288597403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29761080196 + 718508025 = 172514^2 + 26805^2 .

It is a cyclic number.

It is not a de Polignac number, because 30479588221 - 2¹¹ = 30479586173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30479588281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15239794110 + 15239794111.

It is an arithmetic number, because the mean of its divisors is an integer number (15239794111).

Almost surely, 2^30479588221 is an apocalyptic number.

It is an amenable number.

30479588221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30479588221 is an equidigital number, since it uses as much as digits as its factorization.

30479588221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 30479588221 in words is "thirty billion, four hundred seventy-nine million, five hundred eighty-eight thousand, two hundred twenty-one".