30203650073 has 2 divisors, whose sum is σ = 30203650074. Its totient is φ = 30203650072.

The previous prime is 30203650051. The next prime is 30203650111. The reversal of 30203650073 is 37005630203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29418081289 + 785568784 = 171517^2 + 28028^2 .

It is a cyclic number.

It is not a de Polignac number, because 30203650073 - 2²⁶ = 30136541209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30203650013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101825036 + 15101825037.

It is an arithmetic number, because the mean of its divisors is an integer number (15101825037).

Almost surely, 2^30203650073 is an apocalyptic number.

It is an amenable number.

30203650073 is a deficient number, since it is larger than the sum of its proper divisors (1).

30203650073 is an equidigital number, since it uses as much as digits as its factorization.

30203650073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 29.

The spelling of 30203650073 in words is "thirty billion, two hundred three million, six hundred fifty thousand, seventy-three".