30115030873 has 2 divisors, whose sum is σ = 30115030874. Its totient is φ = 30115030872.

The previous prime is 30115030853. The next prime is 30115030901. The reversal of 30115030873 is 37803051103.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23892503184 + 6222527689 = 154572^2 + 78883^2 .

It is an emirp because it is prime and its reverse (37803051103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30115030873 is a prime.

It is not a weakly prime, because it can be changed into another prime (30115030823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15057515436 + 15057515437.

It is an arithmetic number, because the mean of its divisors is an integer number (15057515437).

Almost surely, 2^30115030873 is an apocalyptic number.

It is an amenable number.

30115030873 is a deficient number, since it is larger than the sum of its proper divisors (1).

30115030873 is an equidigital number, since it uses as much as digits as its factorization.

30115030873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

Adding to 30115030873 its reverse (37803051103), we get a palindrome (67918081976).

The spelling of 30115030873 in words is "thirty billion, one hundred fifteen million, thirty thousand, eight hundred seventy-three".