30520297099 has 2 divisors, whose sum is σ = 30520297100. Its totient is φ = 30520297098.

The previous prime is 30520297063. The next prime is 30520297133. The reversal of 30520297099 is 99079202503.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30520297099 is a prime.

It is a super-2 number, since 2×30520297099² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30520297399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260148549 + 15260148550.

It is an arithmetic number, because the mean of its divisors is an integer number (15260148550).

Almost surely, 2^30520297099 is an apocalyptic number.

30520297099 is a deficient number, since it is larger than the sum of its proper divisors (1).

30520297099 is an equidigital number, since it uses as much as digits as its factorization.

30520297099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The spelling of 30520297099 in words is "thirty billion, five hundred twenty million, two hundred ninety-seven thousand, ninety-nine".