30138304813 has 2 divisors, whose sum is σ = 30138304814. Its totient is φ = 30138304812.

The previous prime is 30138304783. The next prime is 30138304829. The reversal of 30138304813 is 31840383103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26895344004 + 3242960809 = 163998^2 + 56947^2 .

It is a cyclic number.

It is not a de Polignac number, because 30138304813 - 2²⁵ = 30104750381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30138304513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15069152406 + 15069152407.

It is an arithmetic number, because the mean of its divisors is an integer number (15069152407).

Almost surely, 2^30138304813 is an apocalyptic number.

It is an amenable number.

30138304813 is a deficient number, since it is larger than the sum of its proper divisors (1).

30138304813 is an equidigital number, since it uses as much as digits as its factorization.

30138304813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 30138304813 its reverse (31840383103), we get a palindrome (61978687916).

The spelling of 30138304813 in words is "thirty billion, one hundred thirty-eight million, three hundred four thousand, eight hundred thirteen".