30123013049 has 2 divisors, whose sum is σ = 30123013050. Its totient is φ = 30123013048.

The previous prime is 30123013013. The next prime is 30123013057. The reversal of 30123013049 is 94031032103.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30091147024 + 31866025 = 173468^2 + 5645^2 .

It is an emirp because it is prime and its reverse (94031032103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30123013049 - 2²⁰ = 30121964473 is a prime.

It is not a weakly prime, because it can be changed into another prime (30123013549) 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 as a sum of consecutive naturals, namely, 15061506524 + 15061506525.

It is an arithmetic number, because the mean of its divisors is an integer number (15061506525).

Almost surely, 2^30123013049 is an apocalyptic number.

It is an amenable number.

30123013049 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123013049 is an equidigital number, since it uses as much as digits as its factorization.

30123013049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 30123013049 in words is "thirty billion, one hundred twenty-three million, thirteen thousand, forty-nine".