30515193193 has 2 divisors, whose sum is σ = 30515193194. Its totient is φ = 30515193192.

The previous prime is 30515193179. The next prime is 30515193197. The reversal of 30515193193 is 39139151503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23638140009 + 6877053184 = 153747^2 + 82928^2 .

It is a cyclic number.

It is not a de Polignac number, because 30515193193 - 2²⁹ = 29978322281 is a prime.

It is a super-2 number, since 2×30515193193² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30515193197) 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, 15257596596 + 15257596597.

It is an arithmetic number, because the mean of its divisors is an integer number (15257596597).

Almost surely, 2^30515193193 is an apocalyptic number.

It is an amenable number.

30515193193 is a deficient number, since it is larger than the sum of its proper divisors (1).

30515193193 is an equidigital number, since it uses as much as digits as its factorization.

30515193193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54675, while the sum is 40.

The spelling of 30515193193 in words is "thirty billion, five hundred fifteen million, one hundred ninety-three thousand, one hundred ninety-three".