20130300077 has 2 divisors, whose sum is σ = 20130300078. Its totient is φ = 20130300076.

The previous prime is 20130300061. The next prime is 20130300133. The reversal of 20130300077 is 77000303102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15903479881 + 4226820196 = 126109^2 + 65014^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130300077 - 2⁴ = 20130300061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130300017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065150038 + 10065150039.

It is an arithmetic number, because the mean of its divisors is an integer number (10065150039).

Almost surely, 2^20130300077 is an apocalyptic number.

It is an amenable number.

20130300077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130300077 is an equidigital number, since it uses as much as digits as its factorization.

20130300077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 23.

Adding to 20130300077 its reverse (77000303102), we get a palindrome (97130603179).

The spelling of 20130300077 in words is "twenty billion, one hundred thirty million, three hundred thousand, seventy-seven".