30123130220 has 24 divisors (see below), whose sum is σ = 63624237264. Its totient is φ = 11979601856.

The previous prime is 30123130207. The next prime is 30123130243. The reversal of 30123130220 is 2203132103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4349594 + ... + 4356513.

It is an arithmetic number, because the mean of its divisors is an integer number (2651009886).

Almost surely, 2^30123130220 is an apocalyptic number.

It is an amenable number.

30123130220 is an abundant number, since it is smaller than the sum of its proper divisors (33501107044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123130220 is a wasteful number, since it uses less digits than its factorization.

30123130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8706289 (or 8706287 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30123130220 its reverse (2203132103), we get a palindrome (32326262323).

The spelling of 30123130220 in words is "thirty billion, one hundred twenty-three million, one hundred thirty thousand, two hundred twenty".