30233121020 has 48 divisors (see below), whose sum is σ = 65231520480. Its totient is φ = 11765673984.

The previous prime is 30233121013. The next prime is 30233121053. The reversal of 30233121020 is 2012133203.

It is a self number, because there is not a number n which added to its sum of digits gives 30233121020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17609 + ... + 246528.

It is an arithmetic number, because the mean of its divisors is an integer number (1358990010).

Almost surely, 2^30233121020 is an apocalyptic number.

It is an amenable number.

30233121020 is an abundant number, since it is smaller than the sum of its proper divisors (34998399460).

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

30233121020 is a wasteful number, since it uses less digits than its factorization.

30233121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264302 (or 264300 counting only the distinct ones).

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

Adding to 30233121020 its reverse (2012133203), we get a palindrome (32245254223).

The spelling of 30233121020 in words is "thirty billion, two hundred thirty-three million, one hundred twenty-one thousand, twenty".