30012352120 has 64 divisors (see below), whose sum is σ = 71734212000. Its totient is φ = 11268730368.

The previous prime is 30012352093. The next prime is 30012352129. The reversal of 30012352120 is 2125321003.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012352129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98307 + ... + 263986.

Almost surely, 2^30012352120 is an apocalyptic number.

It is an amenable number.

30012352120 is an abundant number, since it is smaller than the sum of its proper divisors (41721859880).

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

30012352120 is a wasteful number, since it uses less digits than its factorization.

30012352120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362432 (or 362428 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 30012352120 its reverse (2125321003), we get a palindrome (32137673123).

The spelling of 30012352120 in words is "thirty billion, twelve million, three hundred fifty-two thousand, one hundred twenty".