30120113212 has 36 divisors (see below), whose sum is σ = 61341979104. Its totient is φ = 12903139200.

The previous prime is 30120113173. The next prime is 30120113263. The reversal of 30120113212 is 21231102103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448212 + ... + 511012.

It is an arithmetic number, because the mean of its divisors is an integer number (1703943864).

Almost surely, 2^30120113212 is an apocalyptic number.

It is an amenable number.

30120113212 is an abundant number, since it is smaller than the sum of its proper divisors (31221865892).

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

30120113212 is a wasteful number, since it uses less digits than its factorization.

30120113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65266 (or 65257 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30120113212 its reverse (21231102103), we get a palindrome (51351215315).

It can be divided in two parts, 301201 and 13212, that added together give a palindrome (314413).

The spelling of 30120113212 in words is "thirty billion, one hundred twenty million, one hundred thirteen thousand, two hundred twelve".