301205512061 has 2 divisors, whose sum is σ = 301205512062. Its totient is φ = 301205512060.

The previous prime is 301205512001. The next prime is 301205512063. The reversal of 301205512061 is 160215502103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217449679225 + 83755832836 = 466315^2 + 289406^2 .

It is a cyclic number.

It is not a de Polignac number, because 301205512061 - 2¹⁴ = 301205495677 is a prime.

It is a Sophie Germain prime.

Together with 301205512063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 301205512061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301205512063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150602756030 + 150602756031.

It is an arithmetic number, because the mean of its divisors is an integer number (150602756031).

Almost surely, 2^301205512061 is an apocalyptic number.

It is an amenable number.

301205512061 is a deficient number, since it is larger than the sum of its proper divisors (1).

301205512061 is an equidigital number, since it uses as much as digits as its factorization.

301205512061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 301205512061 in words is "three hundred one billion, two hundred five million, five hundred twelve thousand, sixty-one".