30205315297 has 2 divisors, whose sum is σ = 30205315298. Its totient is φ = 30205315296.

The previous prime is 30205315247. The next prime is 30205315307. The reversal of 30205315297 is 79251350203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29750730256 + 454585041 = 172484^2 + 21321^2 .

It is a cyclic number.

It is not a de Polignac number, because 30205315297 - 2³¹ = 28057831649 is a prime.

It is a super-2 number, since 2×30205315297² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30205315237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15102657648 + 15102657649.

It is an arithmetic number, because the mean of its divisors is an integer number (15102657649).

Almost surely, 2^30205315297 is an apocalyptic number.

It is an amenable number.

30205315297 is a deficient number, since it is larger than the sum of its proper divisors (1).

30205315297 is an equidigital number, since it uses as much as digits as its factorization.

30205315297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The spelling of 30205315297 in words is "thirty billion, two hundred five million, three hundred fifteen thousand, two hundred ninety-seven".