30313210120 has 32 divisors (see below), whose sum is σ = 68213770200. Its totient is φ = 12123675648.

The previous prime is 30313210073. The next prime is 30313210127. The reversal of 30313210120 is 2101231303.

It can be written as a sum of positive squares in 4 ways, for example, as 23108256196 + 7204953924 = 152014^2 + 84882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30313210094 and 30313210103.

It is not an unprimeable number, because it can be changed into a prime (30313210127) 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, 282202 + ... + 374518.

Almost surely, 2^30313210120 is an apocalyptic number.

It is an amenable number.

30313210120 is an abundant number, since it is smaller than the sum of its proper divisors (37900560080).

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

30313210120 is a wasteful number, since it uses less digits than its factorization.

30313210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100537 (or 100533 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30313210120 its reverse (2101231303), we get a palindrome (32414441423).

The spelling of 30313210120 in words is "thirty billion, three hundred thirteen million, two hundred ten thousand, one hundred twenty".