305130105200 has 60 divisors (see below), whose sum is σ = 752887954200. Its totient is φ = 118753332480.

The previous prime is 305130105197. The next prime is 305130105209. The reversal of 305130105200 is 2501031503.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305130105209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10293650 + ... + 10323249.

It is an arithmetic number, because the mean of its divisors is an integer number (12548132570).

Almost surely, 2^305130105200 is an apocalyptic number.

It is an amenable number.

305130105200 is an abundant number, since it is smaller than the sum of its proper divisors (447757849000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305130105200 is a wasteful number, since it uses less digits than its factorization.

305130105200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20616954 (or 20616943 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

Adding to 305130105200 its reverse (2501031503), we get a palindrome (307631136703).

The spelling of 305130105200 in words is "three hundred five billion, one hundred thirty million, one hundred five thousand, two hundred".