30205916012 has 24 divisors (see below), whose sum is σ = 53576144496. Its totient is φ = 14899442688.

The previous prime is 30205915981. The next prime is 30205916021. The reversal of 30205916012 is 21061950203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2918 + ... + 245805.

It is an arithmetic number, because the mean of its divisors is an integer number (2232339354).

Almost surely, 2^30205916012 is an apocalyptic number.

It is an amenable number.

30205916012 is a deficient number, since it is larger than the sum of its proper divisors (23370228484).

30205916012 is a wasteful number, since it uses less digits than its factorization.

30205916012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249137 (or 249135 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 30205916012 in words is "thirty billion, two hundred five million, nine hundred sixteen thousand, twelve".