30305002997 has 4 divisors (see below), whose sum is σ = 30346688736. Its totient is φ = 30263317260.

The previous prime is 30305002993. The next prime is 30305003023. The reversal of 30305002997 is 79920050303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30305002997 - 2² = 30305002993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30305002997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305002991) 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 in 3 ways as a sum of consecutive naturals, for example, 20841779 + ... + 20843232.

It is an arithmetic number, because the mean of its divisors is an integer number (7586672184).

Almost surely, 2^30305002997 is an apocalyptic number.

It is an amenable number.

30305002997 is a deficient number, since it is larger than the sum of its proper divisors (41685739).

30305002997 is an equidigital number, since it uses as much as digits as its factorization.

30305002997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41685738.

The product of its (nonzero) digits is 51030, while the sum is 38.

The spelling of 30305002997 in words is "thirty billion, three hundred five million, two thousand, nine hundred ninety-seven".