30385129207 has 4 divisors (see below), whose sum is σ = 30391364376. Its totient is φ = 30378894040.

The previous prime is 30385129189. The next prime is 30385129273. The reversal of 30385129207 is 70292158303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30385129207 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 30385129207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30383129207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3110269 + ... + 3120022.

It is an arithmetic number, because the mean of its divisors is an integer number (7597841094).

Almost surely, 2^30385129207 is an apocalyptic number.

30385129207 is a deficient number, since it is larger than the sum of its proper divisors (6235169).

30385129207 is an equidigital number, since it uses as much as digits as its factorization.

30385129207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235168.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 30385129207 in words is "thirty billion, three hundred eighty-five million, one hundred twenty-nine thousand, two hundred seven".