30030020018 has 16 divisors (see below), whose sum is σ = 45729333600. Its totient is φ = 14787026496.

The previous prime is 30030020017. The next prime is 30030020021. The reversal of 30030020018 is 81002003003.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30030019978 and 30030020005.

It is not an unprimeable number, because it can be changed into a prime (30030020017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521930 + ... + 576602.

It is an arithmetic number, because the mean of its divisors is an integer number (2858083350).

Almost surely, 2^30030020018 is an apocalyptic number.

30030020018 is a deficient number, since it is larger than the sum of its proper divisors (15699313582).

30030020018 is a wasteful number, since it uses less digits than its factorization.

30030020018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58841.

The product of its (nonzero) digits is 144, while the sum is 17.

The spelling of 30030020018 in words is "thirty billion, thirty million, twenty thousand, eighteen".