30530305205 has 32 divisors (see below), whose sum is σ = 39227673600. Its totient is φ = 22759833600.

The previous prime is 30530305123. The next prime is 30530305243. The reversal of 30530305205 is 50250303503.

It is not a de Polignac number, because 30530305205 - 2²⁸ = 30261869749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1694645 + ... + 1712565.

It is an arithmetic number, because the mean of its divisors is an integer number (1225864800).

Almost surely, 2^30530305205 is an apocalyptic number.

It is an amenable number.

30530305205 is a deficient number, since it is larger than the sum of its proper divisors (8697368395).

30530305205 is a wasteful number, since it uses less digits than its factorization.

30530305205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18365.

The product of its (nonzero) digits is 6750, while the sum is 26.

Adding to 30530305205 its reverse (50250303503), we get a palindrome (80780608708).

The spelling of 30530305205 in words is "thirty billion, five hundred thirty million, three hundred five thousand, two hundred five".