305130105197 has 2 divisors, whose sum is σ = 305130105198. Its totient is φ = 305130105196.

The previous prime is 305130105191. The next prime is 305130105209. The reversal of 305130105197 is 791501031503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248576033476 + 56554071721 = 498574^2 + 237811^2 .

It is a cyclic number.

It is not a de Polignac number, because 305130105197 - 2²⁰ = 305129056621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305130105191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152565052598 + 152565052599.

It is an arithmetic number, because the mean of its divisors is an integer number (152565052599).

Almost surely, 2^305130105197 is an apocalyptic number.

It is an amenable number.

305130105197 is a deficient number, since it is larger than the sum of its proper divisors (1).

305130105197 is an equidigital number, since it uses as much as digits as its factorization.

305130105197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14175, while the sum is 35.

The spelling of 305130105197 in words is "three hundred five billion, one hundred thirty million, one hundred five thousand, one hundred ninety-seven".